Alrighty, self summary huh? I suppose by stating the somewhat obvious - I'm a girl. I would love to make this interesting but fuck it. I'm serious with a love of fart jokes. I'm moody but sincere. I have an absolute shit memory. My hobbies change depending on my mood, much like my relationships with people. For the most part I am a bubbly person, but only once I get to know you. I love mischief and can be a bit childlike when having fun. I have quiet days, loud days, angry days, sad days, obnoxious days. You get the idea. I do enjoy gaming and a good challenge. I think self summaries are pointless because summing up the entirety of a personality is difficult when the one being summed up is enthusiastically multifaceted. If you want to get to know someone you should just talk to them.
Disclaimer: I am a total smart-ass.
[EDIT: I was going to re-do this whole thing but I think instead I'll just do a tl;dr]