What kind person am I and what should I change?

I've met a a lot of people that couldn't seem to keep the truth from flowing out of their mouth. However, it's probably one of those skills that you would like to harness because people don't like being told the truth when it's brutal or they do not feel comfortable enough with you. My suggestion: make friends by biting your tongue when you feel like saying something that could be perceived as hurtful by another person, then slowly let yourself shine through and people will find your honesty funny. I think you have one of those personalities that you have to let people receive in small doses so they don't think you're a jerk.