you just have to hit other jumps.
if you tell yourself that you are uncomfortable hitting jumps, and therefore don't hit or trick jumps because they are new, you just end up putting yourself in a shitty circle of intimidation. I did that to myself this year a little bit, it sucked.
just go ahead and do a 3 on another jump. the worst that happens is that you crash, and realize that the jump isnt all that different from what you are used to.