Hi LDM7,
BH is both getting you into trouble and into the driver's seat.
Tactically, it isn't landing often enough and with enough quality to take over the point all the time. Strategically, it is important you attempt to open with the BH when the ball is there for it... even if you miss some balls in the league matches. They are not important enough to play all out tactical to win.
You tend to lean back when opening with the BH. Some of it is that you are too upright before impact. (came out of crouch early) Some of it is not perceiving when the ball bounces on your end, especially when the ball bounces closer to the endline. You have more trouble vs these in practice. More reps and seeing when ball will bounce will allow you to get down and up with the right timing and stance to make much higher percentage with more time.
It is important to attack the balls that should be attacked, even if your consistency is not 70-80- percent range yet... by the time you get there in practice, it takes a long time to get that number over 70 in league matches... so it makes sense to develop the strategic goal by practicing it now - which you are.
Sometimes, you reached way out in front with zero leverage and attempted your BH and you missed the shot on almost all of those.
You were forcing yourself to use your BH... I see your stance after serve or return was BH oriented with right foot in front... you even stepped to the right some to BH loop balls that came to the center T. Yes, you were dead set on employing that BH.
When you did have a decent stance and caught the ball in your strike zone, you had higher percentages (obviously) and when you strung together several of those in a row, your opponent seemed to not like that and lose the point or play weak on those. Your confidence also got up there and affected your opponent too.
You missed a few FH by not getting out of that BH stance in time... but over all, you were looking to open BH, then pivot and use that FH. You need to get higher percentage at it... but you strung together enough of those combinations to in certain parts of your games to ensure you kept the upper hand in the rally. Doing that has an effect on the opponent as the match wears on, so it is important to go for those shots (like you did). That kind of pressure works at your level now, and as you get better, it will work at the next level.
You tried (and missed) at a bunch of long serves, which is OK, because at some point, in league matches and casual matches you have to do that to train your brain an aggressive response to take over the point. You will get eaten up at higher levels not doing that, so what you are doing here is appropriate.
It is also OK to swing and miss or hit an edge with your FH loop vs a push 3rd ball when it comes (like you did at 7:25)... you will start landing those more often as your consistency in practice increases. Same story here, you should be attacking the balls that should be attacked, even if it is tactically hurting you right now, you are developing strategically and in so many months you get over the hump and it will also be advantageous tactically as well. When you start getting to that point, that is where you compete even better or go up a level... but then you face better players and you need more quality and under match conditions next level, you will not be as consistent... then you improve vs that level and so on goes the improvement cycle.
You have cycles like this and other ways to improve literally for the rest of your life if you seek to keep at it.
I thought you were gunna shout GENAU !!! after your finish at 2:13
I also saw a big improvement in BH blocking in league match conditions, your improvement in practice is starting to crack through on that one.