As for me:
Would I change my type? I'd have to have a definite type first. I'm:
(mostly) INTP,
(almost as much) INTJ,
(sort of) INFX;
(mostly) INXX,
(definitely) XNXX.
I wouldn't want to change that last one.
That's the good thing about having X's; I change all the time.
As far as qualities in myself go: I'm always pushing myself to get out of my comfort zone and socialize, so I can become more extroverted. The more I act like an extrovert, the more I like it and the easier it gets. I don't know if I'd like to have always been an extrovert though; maybe I wouldn't be as introspective. I'm developing my Se, and paying attention to things in the moment around me. I'm developing Te as far as logistics and managing time are concerned. In this way I'm becoming more J-like. I'd really like to be that organized and productive. I'd like to be able to stick to a schedule, provided it had some flexibility and room for spontaneous fun things. I'd like to be able to shut my brain off and just feel more easily. I'm scared of it; I don't want to lose control, or lose my sense of being a detached observer in any situation. I don't want to ever be irrational. My (negative) emotions make me irrational, and I hate it. I've always been good at ignoring them until it's no longer possible; but after that I have to do something about it. I have no problem with emotions in general; I just don't want them to control me. (And I'd really rather not ever be sad or depressed for very long; luckily I never am.) I want to use them for productive purposes. I've spent years fighting with myself and learning how to do this; I'm still not perfect at it, but pretty good. I think I'm a T, but if not whatever. I probably change between the two of them, so it's all good. Living in harmony with both thinking and feeling is the best way, I think.
So in conclusion: more E, better S, better T and F, and more J. I want to truly become XNXX.