I don't think that bigger jumps make spins easier necessarily. Technically they should and at a certain point they do, but people tend to feel more confident and throw tricks cleaner on smaller features. People that can 7 tiny jumps but rarely spin over 3 on bigger jumps.
Just take it in stepping stones if possible. If your resort doesn't have jumps built that way maybe just try it in a 3 jump line. Learn it on the first, then the second, then the 3rd. If you're getting bigger gradually it isn't as scary. If you're going from a small jump to a big jump, you just gotta say yolo and get sendy.
I only spin smaller jumps now because I'm a pussy.