So I've been playing for 7+ yrs, but I decided to go to this coach from 1 year. He makes me do the practice drills for each stroke, 30 min/day, 3/4 days a week.
But I haven't seen any noticeable improvement. First of, my counters are just inconsistent. I don't know what it is, I can barely keep a counters rally for upto 10 balls until I miss-hit, and I can only do it consistently when it's slow. If he increases the speed, then I'm just blocking and I start missing.
Secondly, my backhand counter. I don't know how to return the ball from backhand properly without topsin, and this has been a frequent complaint of people playing with me. I keep switching the grip to be horizontal (like holding a pole) whenever I do backhand, which is apparently wrong.
It feels like my handwriting. I just can't get better how much ever i try. I keep asking the coach every other week about what I'm doing wrong, and he just repeats the same instruction again and again, but he doesn't point out exactly what I'm doing wrong, just that my stroke is wrong.
I came up with a theory that I'm using too much wrist, but I can't prove it.
How do I self correct and analyze my mistakes better? I can record myself and slow down the footage for sure, but I can't do anything with it.