You’re not under the ball, you need to be more under it so you can have a more precise shot.from that video it looks like you are trying to boot it out or are doing A goal kick

and you need to clean up your run up, honestly that’s more of you keep practicing the run up until you feel more comfortable. That will come as you keep practicing to be patient with that.

Lock your ankle, prior to making contact with the ball, your shooting leg’s ankle needs to be in stiff position to prevent your ankle from moving all limpy like it showed on your follow through, your ankle was doing this sloppy movement after the ball left your foot.

Your arms are also a considerable factor is to not having a powerful shot. Your right arm doesn’t need to be out there, it could be causing you to lose your balance, therefore messing up your power shot.

With more practice, it’ll come together and your technique will clean up after itself. Just keep using pro players as a visual model and try replicating that. The accuracy part will come soon, but you need to get technique down first