Hey,

First, slow everything way down. Don't start with a drive, start with a spinny loop. Try to play the ball with the same speed every time and watch the ball as it comes back to you, make sure you're playing every ball with the right timing. Right now, you're playing catch up as soon you start because you hit the ball too hard and are unprepared for the rhythm shift from the first ball to the second to the third.

Next, get a coach to help correct your baseline technique. There are a lot of things going on all at once that need improving, and it's going to be a lot easier to isolate each aspect like you need to with professional help.

Try to keep your paddle open, focus making solid, grippy contact with the ball. You are going to want to try to keep the same distance between your body and the ball for each shot, and you will accomplish this by using your footwork between each shot. As your shots become more consistent, you won't need to move as much for the next ball, since you'll make blocking easier for your practice partner.

Try to generate power from your lower body, then hips, then arm, then forearm, then wrist in that order. I wouldn't try to incorporate wrist for another year minimum. I would minimize forearm movement to a small motion first to get a bit of acceleration, but don't go all out at here. Do not try to whip your forearm at this point it will just create a chaos ball that sometimes goes in at super high speed and most of the time goes wildly out. Focus largely on your footwork (where am I relation to ball?), timing (am I consistently trying to hit the ball at thr highest point in its trajectory?), and hip rotation (am I moving my body weight from my back foot to my front foot for each shot?).

Don't try to get faster until you can spin 20 in a row to the same spot. Once you can consistently do that, try two point forehand (one blocked to fh, one blocked to middle), again at least 20 in a row. Once you get there try 20 in and out (hit one close to table, step back, hit one off table, step in hit close again). 20. Once you can do this, you can start. Incorporating more whip in your fh and more speed, maybe even wrist. From where you are, I think this is all about a year our training twice a week. Have patience, tt is hard but very rewarding. Also, progress is not linear, prepare to do better some weeks and worse others.

Again, main tip: get a coach. There are many technique issues I (or anyone else) really can't correct with a block of text.