Replying to How do I grow some balls.

So im 16 and ive been skiing for pretty much all my life, ive been trying park since around 13 ish but i just get so scared of falling on even the tiniest jumps. I can (sometimes) do a 360 but am too scared to even attempt to spin on boxes. My question is: How do you guys not get scared at all? I have seen people on here do the craziest stuff and i just could not imagine myself doing it. The only think i can do is like a really slow 360 and really need some help.
Thanks guys.