Am I not very likable? :I

I tend to have a unbelievably low confidence level, I am pessimistic and depressing... Then, on the turn of a dime I am loud and obnoxious. So it would be understandable. :/
Strangely, I am not depressed right now. Nothing is wrong. I just got to thinking that I don't have very many friends. Like, AT ALL. If any of my friends on theO find this offensive, then I'm sorry. It's not meant that way.
I have pretty much only 2 RL friends.. And I don't really know who consider my friends on theO. I know some people are very kind, but I don't really know if that kindness is just that or if it's because we are actually friends.