what would you say is your biggest flaw?

I try too hard
(Its impossible for me to not try that hard)
I sometimes appear cold since I have no visible reaction
(My friends understand I care though and I am trying to help)
Eccentric
(I dont know if that counts but it seems to irritate some people. I love my eccentricity though)
I am way too eager about everything
(Makes people think I am weird)
I usually helps anyone who asks just because they asked even if I know ill get nothing in return because my damn moral code and guilt says I have to.
I have a very obsessive personality and many OCD tendency
(This is more dangerous when I become obsessed with people)
I cant always express my feelings normally but I will show I care through gestures
(People dont always understand that means im caring)
I prefer written or text communication just because my brain cant put a proper thought into my mouth and I still have a speech impediment
I look like a child despite im 21(I hate being asked for a kids menu as well)
I tend to look way less intimidating than I am so people try to mess with me and are confused when I hurt them
I tend to not know how to handle my own strength and am very rough without realizing it