I think the thing that I truly dislike about myself is how assertive I am not. I do not like to feel like I'm bothering people, or that I'm going out and getting what I need. While it might seem polite, it often leads to a lot of frustration on my part and I still don't have the answers or things I need... simply because I didn't ask for them.
It's something I struggle with and continue to work on. Starting grad school was a hard exercise in this, and I'm sure I'll encounter more bumps along the road. But I hope one day to be able to be assertive without being a bother. I'm sure it's possible!