[kbutler]

I think there's some truth to this - you may still have the tendencies to be introverted, neurotic, disagreeable, etc., but you can choose how much you let those tendencies drive your behavior.

You have a choice of how to respond to your feelings - if you feel introverted, so you never talk to people, it dominates your life and personality. If you feel introverted, but you frequently talk to people anyway, you can make friends, participate in activities, and reduce the impact of those feelings on your life.

"I have a tendency (diagnosis), therefore I'm excused" or "I have a tendency, so I've created habits to create good results in spite of it."

And with practice, it gets easier, though it may always take work, and much more effort than for people to whom it comes naturally.

Maybe this doesn't change your personality to "I naturally socialize with others", but maybe it lets you change to "I can enjoy socializing with others".