Haha. I was the same way when I first got my Corn! I was worried about handling her. She's full grown, which is wonderful. A lovely size. But I still felt 'awkward'

The more times you do it, the more you'll get to know your snake and it's behavior.

So don't be afraid to pick it up. Be confident. Know that it's okay not to know exactly how to hold him or what he wants to do if he starts exploring. Just relax, and enjoy the learning experience. You'll get it!