What do you do with your hands when you speak?

It may help you to think of hand gestures as falling into two categories: artificial and descriptive.

Artificial gestures have little or no connection with the sentence your are transferring to your listeners. The most common is a chopping motion. Not preferable.

Descriptive gestures match the sentence, and they are for the listener. Ideally, they are out in front of your chest and toward the chest of your listeners so they don't obscure your face.

PS "You use your hands too much" is bad feedback 99% of the time. If your hand gestures are distracting, it is most likely because the gestures are artificial, directed to the side or up in front of your face.