2) I joined the first guild 'Looking for Members'ing in Ascalon (a mistake in itself), then when the guild fell apart I didnt know for a MONTH how to leave the guild. So I was stuck in a 1 man guild.
3) Similarly to number 2, I didnt know how to remove people from my friends and ignore lists.
4) I didn't realize Preps didnt stack until the second mission I tryed to stack them in.
5) It was a much longer time before I realized my Stances weren't stacking.
6) I swear the only thing I used my keyboard for was w,a,s,d moving for like 2-3 months. Mouse Click Targeting was SOOO annoying in the middle of battle, and I'd always target the wrong thing

7) I make a lot of smaller mistakes wasting my time and money. Like:
a) Cant even think about how many times I've overpaid for something, then 2 seconds later someone starts trade spam selling the same item for like 10% of what I paid for it.
b) I was clicking through upgrades at the Priest of Balt. and twice I've accidently unlocked trash updates, like Fiery Hammer update...
c) Buying stuff I dont need cause I already have it on another character, and deleting characters with stuff still on them.