It's probably because you're like throwing it out try and get the spin the reality is your foot needs more in the middle of the board like you're front foot so it was like a top cause it would stay under you that away from you

Don't throw the board in front of you Learn fakie 3 shuvs it will help keep you centered

try 360 shuvits

Trey to usw. your shoulders more

Red 360

Jump forward and stay over the board . And try to pull your back foot towards you to keep the board from going to far away.

Try turning majority of the way then shove

Put your back foot in the pocket and scoop then act like your just doing a back 180 spin

Lean back as well

Try to turn your body as early as possible like a back 180. If u do it right it should feel just like a pop shuvit