Hey that was fun to watch, love the smiles and happiness, you seem like you would be a guy that's real fun to train with!
As for the game feedback, mostly focused around the point at 1:35, and mostly about things which I think aren't incidental but show up as patterns for many club players I've seen, which may or may not be the case.
1) The backhand to forehand switch. That was a classic example you see a lot. And it's a shame coz when you prepare your forehand it looks like good preparation!
My suggestion is to entirely avoid hesitation. In the next few practice games get your hand and body down and ready to come up for a forehand topspin even if you don't know where the ball will come. Just as soon as you hit, get ready for a forehand. It develops a good habit, even if you lose a few points because of getting hit on your backhand.
Besides, the backhand motion is a lot more compact and quick, and setup for it is also very quick, so you probably will gain more points than you lose even on the immediate.
2) Your right leg is forward, which I think is something to be conscious of. You want your left foot slightly forward at nearly all times (except when coming into the table). or you'll be immobilized every time you need to play a forehand shot. I'd practice this, at least for now, before you're very accurate and quick about micro-adjusting stance (same logic as preparing the forehand topspin always).
Right foot forward is for playing over the table, but immobilizes you if you don't retract it immediately, and in this case this is not over-the-table play. Left foot forward (or off-foot, generally, depending on your handedness) is the way to go.
3) Those backhand shots are nice! You wait exactly for the top of the bounce which is the first and most important principle that's sometimes difficult to get the hang of, but all 3 shots are different because your right foot is forward and so you lean into each shot more and more until there's nowhere left to lean to
So against any ball with a bit of quality they won't have gone in.
4) The block at 1:22 is often indicative of a habit of doing that. Blocking with a forehand in the body instead of a backhand a bit to front. If it is, it's not good even if it works and even if it's 'consistent'
So probably good to work on blocking random-placement slow balls with a partner. It'll almost never produce a non-super-attackable ball which against someone who can topspin that'd be the end of that.
In short I would work mostly on eliminating hesitation (even if by means of forcing something potentially suboptimal at first), and on very simple 'random placement' practice with weak, slow, no spin balls, keeping left foot a bit forward.
Regarding serves:
In general I would agree with Carl's assessment that developing spinny serves would win you points easier, but I'd also be cautious of doing that. At the level you play I often suggest not to use complicated serves at all because it stunts overall development (this is my personal philosophy).
There is nothing more head-bangingly annoying to me on wednesdays and fridays (when I help coach beginners at the club) than seeing two beginner players who have all kinds of side/under/top spinny serves they worked on at home but can't keep the ball on the table for more than 3 hits or even really read the spin on the return of their own serve.
The spinny serves stunt the development of their game and they just win some points on serves against other players their strength and that's it. And the worst thing is that they think they're hot because of the serves...
At this level I would advise to deliberately not use anything more complex than a weak backspin serve and practice playing points with consistency rather than brilliance.