Replying to 360 help

I've been trying 360s a lot lately and have the same problem every time...I can spin 180 off anything but when I finally hit a jump that i think i could pull a 3 off of I just end up throwing a huge 180

It feels like the back of my skis catch on the lip and don't allow me to continue with the spin...does that mean i'm spinning too soon or what?

I just really wanna progress and this is holding me back a ton...plus I can never seem to land angled down the landing...like I'm leaning too far back...

thanks in advance!