That's such a very important point that took me way too many months to internalize. It actually sped up my process after that a ton.
I'd say:
- Move your feet quickly to put yourself under the ball
- Change grip to eastern backhand (I use my other hand and leave the racket parallel to the ground or pointing at the ball slightly)
- Stand sideways. Shoulders and feet looking at the fence (drive side)
- Trophy pose, short prep is easier, push with the knees
- Hit the ball at the highest point, slightly (!) behind you gives you more kick (the farther you are from the net, the more behind you should hit)
- Loose the wrist to a side brush only when hitting
- Long follow through, body weight forward
Edit. I forgot to add the grip change. For me it was key.