I will be honest... I wish I was straight many times nowadays. So I'd fix that, but it's not personality, or emotional. So my subconscious will to carry on living or ability to love someone; I'm not really which is the root cause of pain.
I'd fix the fact that I often say yes way too quickly. It's not that I can't say no, I just don't think it through enough, so let's say when I get asked out on a date or to do something, I often say yeah sure why not, but then when I think it through, I change my mind. And I often end up hurting people. It's a bad trait if you ask me.
I wish I didn't get annoyed so easily, over silly things that aren't important. I've said some hurtful things in the past that I didn't mean out of anger. This seems to be a problem in my family in general, so maybe people in my family are genetically predisposed to flying off the handle.
I wish I didn't depend on my sister so much for confidence - when she's not around, I find it a lot harder to stand tall and proud. I'm used to having her as a crutch, to knowing that even if I make a fool of myself, I'll have her to rely and fall back on. Not having that is... weird. So building up self-assurance without her would be my fix-it. Or having perfect pitch. Or an eidetic memory. Those would be fantastic!
I would fix my lack of self-confidence. It holds me back so much. And it's like a self-fulfilling prophecy- I don't believe I can do something, and then I don't even try or I sabotage myself, 'proving' it's true.
I would make myself more confident in the things I say. I often fear people will criticize what I say, probably because my mother always does.. If I could fix more things I would make myself less of a procrastinator, and less lazy in general.
Anxiety, awkwardness and touchiness. I get nervous easily, have a hard time communicating and easily get irritated of others' opinions on my things. I also have Intermittent Explosive Disorder (IED); short temper outbursts but I could live with that.
Lack of personality/passion, I don't know who I am or what I like so I have a hard time trusting any life decisions I make, I feel like the pokemon 'ditto.' Makes it a little hard to build relationships. Also I wish I was less judgemental but I think every single person is and it takes a conscious effort not to be so just acknowledging it puts me ahead of the average on that point, imo at least.
I have many things to pick from. I could try to fix my psychopathic tendencies, but I don't want to do that. I could try to stop assuming bad faith, but I don't really care to do that either. I'd love to be less lazy though.
My habit of crying for things that I guess I wouldn't cry about if I was tougher. Don't get me wrong, they are usually very bad a serious things, but I wish I could just suck it up and deal without bawling like a big fat baby... =/