Replying to Progression???

I’ve been skiing my entire life, mostly racing. However about two ears ago, I saw some dude throw some crazy shit off of some jumps and I decided to switch to mainly park and some freeriding. Over the past two years, I’ve taught myself rails (normal pipes and boxes but no kinks... yet), 360s, 180s, grabs, butters, etc etc basic stuff you get me? Now I’m looking to progress and start throwing my spins off of bigger jumps but when I get to the kicker I just freak out and end up straight airing or just a grab. What would you guys recommend to huck a 180/360 and take park to the next level?
Really appreciate it guys