Let's see now
I'm pretty aggressive in tone so I might end up sounding like a huge jerk despite not really meaning any ill. Even the littlest insult and disagreement could get me constantly on your ass, although I won't insult anyone myself.
I'm actually really, really lazy when it comes to going outside. No, I'm not anti-social nor do I hate going outside, far from it, but sometimes I plan to go outside or something and when the time comes I'm like "dammit I don't feel like it" and just stay. Although when I push myself to do it I never regret it, so it's honestly something I should fix. Procrastination basically.
I'm sensitive. That's a flaw to me. I hate getting worked up over little things, it goes against what I believe in. I'm fixing that, but lately I don't show my sensitivity. I manage to keep it to myself these days, but it does bug me.
I'm also too laid back. Sometimes I just don't care about anything, even though I should. Serious problems? I tend to tell myself "I'll worry when the time comes." Can't say it ever bit me in the ass actually since I always manage but if I don't drop that attitude soon I'm gonna be ****ed.
There's more, but why should I tell you all of them?