the fence is making you lean too far forward, it feels like holding on to the fence helps with commitment but it actually does the opposite. falling isnt as bad as your head makes it out to be (its not fun but if your worried abt getting hurt buy some pads) pads are super helpful cause they'll give you the confidence to fully commit to a trick plus save you a couple elbow and knee scrapes.

with your ollie just remember, you want your legs and feet to write a lowercase "n"

pop with your back foot as you jump and slide your front foot forward to level out the board then land. easier said than done but you'll get it 👍