I am having trouble making the jump in monkey form once I get on the block. I even followed how it's done on the tutorial video, but I have only made it up there 2 or 3 times. Any advice?

The best I can say is that if you're on the block position-wise, it's just learning the proper amount of jump required. It's obviously not a full jump. It's not a tap jump either. There's a middle ground for the amount of jump that will get you in there, and you just need to find that happy place where you get a feel for being able to get it consistently.