In terms of writing, I would like to become better at (or rather, regain the ability to) provide more descriptive detail beyond dialogue. I started RPing in order to work on my dialogue skills as a writer, and now I feel like I've stepped too far in that direction and my fic writing has suffered for it.
Overall, I would like to be better at relating to people in RL, as I'm on the spectrum and sometimes I feel like an alien among people who know how to "people".