Full Disclosure: I only watched match 3 & part of 4 so far.
So what do you want to take away from this competition? Imo that's really important in deciding whether and how much you want to compete at your current level. I disagree (respectfully!) with Tony and Der about not competing until your fundamentals are more solid. There seems to me a lot you can learn from these matches. But you are the only decider about that.
I see what you meant about aggressive play. You like to see two or three pushes first and then pick a ball to open up. Lots of players like that pattern and it's fine if your opponent will give you those chances. I didn't see you play much defense and block successfully. So I think if you want to continue that way you could work on your blocking, and also on transition from defending to attacking. It takes a lot of pressure off your receives and pushes if you aren't afraid of your opponent's loops. And blocking is under-practiced even though it is super easy to practice, just find an aspiring looper and volunteer to block for him. Here are some ideas:
First of course simple blocking fh and bh both diagonal and down the line
Where you stay in one place but block to two or three points (very good work for the looper)
One bh on fh where you move side to side alternate fh and bh blocks, and block to one spot for the looper (wherever he wants, doesn't matter for you)
Xs and Hs exercise where you block and he loops, take turns being X and H
Transition exercise where each player runs through a sequence of loop, hit, block (this one is very good but a bit confusing)
ex: player A feeds a normal ball, B loops, A blocks, B hits it back (nicely!), A loops, B blocks, A hits it back (nicely!), B loops again, continue forever
So the sequence for each player is A feeds ball then: block, loop, hit. B: loop, hit, block. It's not meant to be match-like, just a way to get used to switching between attack and defense.
I didn't see any short serves, although I only watched about a third of the video. So I wouldn't put time into touch play or flicks. You won't get to use those skills in these games. And taking time away from more fundamentals will delay the day when you do need short game skills. However I do think it's good to play these comps because you need the serve and receive practice. Everyone needs more receive practice. And it's almost impossible to get someone to serve to you and not play out the points. That's the best way to practice receive. I see people practicing serves (rarely) but they don't want anyone to receive. Which is crazy because that would be perfect feedback for the server. Matches are less efficient practice but you do get people's best efforts.
I'm not the best one to talk about stroke technique. I'd just say if it were me I would focus on safety and consistency with fh loop vs backspin. You had a lot of trouble in the games I watched with sidespin serves, because you are pushing them. Smart players will take advantage of that and force you to attack long serves when you would rather push. Also from my experience simply having the choice of push or loop makes it much harder to successfully loop serves because you have to make a decision and there simply isn't time for that. A safe opener to an uncomfortable location for your opponent can take the decision out of it, and let you react instantly to long serves with a safe loop. That gives you the initiative in most points. And you will get much faster to the levels where learning short touch and flicks becomes essential.
So what do you want to take away from this competition? Imo that's really important in deciding whether and how much you want to compete at your current level. I disagree (respectfully!) with Tony and Der about not competing until your fundamentals are more solid. There seems to me a lot you can learn from these matches. But you are the only decider about that.
I see what you meant about aggressive play. You like to see two or three pushes first and then pick a ball to open up. Lots of players like that pattern and it's fine if your opponent will give you those chances. I didn't see you play much defense and block successfully. So I think if you want to continue that way you could work on your blocking, and also on transition from defending to attacking. It takes a lot of pressure off your receives and pushes if you aren't afraid of your opponent's loops. And blocking is under-practiced even though it is super easy to practice, just find an aspiring looper and volunteer to block for him. Here are some ideas:
First of course simple blocking fh and bh both diagonal and down the line
Where you stay in one place but block to two or three points (very good work for the looper)
One bh on fh where you move side to side alternate fh and bh blocks, and block to one spot for the looper (wherever he wants, doesn't matter for you)
Xs and Hs exercise where you block and he loops, take turns being X and H
Transition exercise where each player runs through a sequence of loop, hit, block (this one is very good but a bit confusing)
ex: player A feeds a normal ball, B loops, A blocks, B hits it back (nicely!), A loops, B blocks, A hits it back (nicely!), B loops again, continue forever
So the sequence for each player is A feeds ball then: block, loop, hit. B: loop, hit, block. It's not meant to be match-like, just a way to get used to switching between attack and defense.
I didn't see any short serves, although I only watched about a third of the video. So I wouldn't put time into touch play or flicks. You won't get to use those skills in these games. And taking time away from more fundamentals will delay the day when you do need short game skills. However I do think it's good to play these comps because you need the serve and receive practice. Everyone needs more receive practice. And it's almost impossible to get someone to serve to you and not play out the points. That's the best way to practice receive. I see people practicing serves (rarely) but they don't want anyone to receive. Which is crazy because that would be perfect feedback for the server. Matches are less efficient practice but you do get people's best efforts.
I'm not the best one to talk about stroke technique. I'd just say if it were me I would focus on safety and consistency with fh loop vs backspin. You had a lot of trouble in the games I watched with sidespin serves, because you are pushing them. Smart players will take advantage of that and force you to attack long serves when you would rather push. Also from my experience simply having the choice of push or loop makes it much harder to successfully loop serves because you have to make a decision and there simply isn't time for that. A safe opener to an uncomfortable location for your opponent can take the decision out of it, and let you react instantly to long serves with a safe loop. That gives you the initiative in most points. And you will get much faster to the levels where learning short touch and flicks becomes essential.