Yeeeeaaaahhh... I'm pretty sure that EVERYONE here is guilty of MISC: 1 and 3, there's no buts about it, if you want to improve, no matter how much you enjoy the game you will eventually enter "TRYHARD MODE", no way around it. And OFCOURSE you want to impress people, but that's every game. Look at any MMORPGs. People spend months farming amazing mounts! What do they do, you ask? ABSOLUTELY NOTHING, all they do is make your character "cooler". Trying to impress someone is a daily occurrence, and there's no way around it, no matter how hard you try to be self-conscious about it.
Still, you bring up many great points, all of which are valid. (I also might have some bad habits, such as restarting a normal/hard map whenever I miss a circle... I need to break that habit.)
Thanks!
Also, I do know that this post is OLD, but... er... I don't really care.