What is beyond your ability by a smidge?

Writing a novel.

What @janbb said.
Also creating a simple comic with Photoshop (I’ve just done one).

Dunking a basketball. I can touch the rim but actually dunking takes a lot more.

Levitation.

I know I’m really close to defying gravity, but no matter how hard I try, I just lack that last 1% or so.

To leap tall buildings in a single bound. I think it might be my shoes I am wearing

I try not to view jellies as monkeys punching buttons, I really do, but sometimes I come up short.

@ucme Stop looking in the mirror and you can get past this

Baking. Too much science involved.

Slaloming in water skiing. I used to be an above average athlete, but that was one thing I could not seem to master.

@Cruiser Very weak, but so typical of you :)