Drawing. With programming, I can create a remarkable amount of things out of almost nothing, and I always wanted to do the same with pictures, but there's just something missing (and yeah, I tried the whole side-of-brain approach).

With a lot of other lacking abilities, I feel like I could just punch through with enough dedication and discipline (music, business etc.). But some simple lines and curves...

prioritising tasks. being able to discern what tasks are essential and what tasks are mildly useful

Managing, Leading and motivation

talking to girls. I suck when it comes to talking to girls