Long long long time ago, MVPboards, a place that evolved into AnarchyZero where GZ found me.
The RP was's name was...can't remember it. It was just a typical fantasy RP though, well maybe more in the vein of Final Fantasy. All I really remember is we were all not that great, I was like 12 or 13. But I did make my first character, Doctor Krad Dusk. Rest of the characters were pretty much self inserts by the other people though. Wasn't that great or memorable despite being fun, don't think it EVER finished...
Didn't do that much for me, but at least I tried that character for the first time, he evolved into a much better one. Went from a kind of bumbling Dr.Wily type guy to someone much more interesting and less one-dimensional and very unpredictable.
Can't remember any particular mistakes I made though...Bet there were some but sadly, the board got erased.. <_<
And yeah, my expectations have changed. I used to be happy with more generic less defined RPs that didn't even have OOCs or require characters bios, but now I like defined RPs with unique settings instead of things that just copy video-games/movies. Of course they gotta be fun as well, if I'm joining an RP, it can't feel like a chore, gotta enjoy it above all.