Ok sometimes when you try the trick you front foot without you knowing is going to flick or push forwards dis makes your Foot fall of you board so what you want to try is to keep your front foot in one place and also try jumping a little forward following your board and try rolling slowly dis will help to.

I would try to pop a little less and jump forward when u do the trick. Also try keeping ur upper body over the front section of your board, u r more likely to fall backwards than forward.

Jump a little higher and try to catch it in air but only try to land it with the back foot for a while

Just remember with every flip trick, stay above the board and commit. Your front foot can also help control the spin by pivoting the board slightly.

Rotate your front shoulder. Your front foot will follow and catch the board as it is spinning. Use your arms to wind up a bit too. Don't wind as much as a 180. You just want to be conscious of it not opening up FS.