Your problem is not sliding your foot to the end of the nose when u pop. U want to have a solid pop and dedicate at least 1 second to the pop and while you finish snapping u slide ur front foot to the nose but watch the landing because u could land too much on the nose and take a spill. If the sliding isnt the problem then its probably u bot committing or being scared

Try to keep you center of gravity over the board and not behind it

If "keep weight over board" is too vague, try having your front shoulder over your front bolts, this will prevent bad weight distribution or rocket ollies.

Then u should practice a Lil bit more because I'm sure it's fear from ur body instead of trying to jump over something u could try to go faster hopefully I am able to help u ;)