Hey Hamza! So yes your overall technique and arm movement isn’t bad at all, like you mentioned you definitely need to use more legs and hip rotation to help get the lift and spin when playing against a push. Also really trying to relax your wrist and accelerating it through the contact will help add spin and lift the ball over the net.
Lastly be sure with the timing that you are hitting the ball at the top of the bounce, or just after it, not to early and of course not when the ball has dropped to low or its very hard to lift then.
Tom 🙂
