making fun of yourself is kinda like overplaying a situation. comedy in that way is not overplaying a situation, especially not yourself, that is something that you wont find anywhere in theatre or television or cinema. its kinda like the way Will was acting on the first episodes of the fresh prince. playing yourself with your own attitude is not acting or maybe bad acting. as an acting student i can tell you that it gives me more the feeling of chris langer, who is showing me that he has fun making jokes and stuff.
comedy doesnt work that way. comedy is created out of a situation and not on purpose by having the intention to make something which seems to be funny. comedy is probably the hardest and most difficult genre in acting. the question is: how can i do comedy but be 100% serious and truthful.
there are ways of caricature and illustrative acting, but these are not necessarily "comedy" bound.
there is nothing bad about it at all in my opinion, like sanford meisner once said "You know it's all right to be wrong, but it's not all right not to try."
so just keep going and taking lessons. i think that you are talented, at least i can tell you that i saw that you got the essence of the moment at times.