I joined a slice of life RP back in 2010 on this gaming forum I visited a lot to chat with people. The Escapist, in case anyone's heard of it. At first I was mostly bored by the RP and tried to mess things up by having my character do bad stuff, like pranks and such. My first character was quite the mary sue too, since I had no real experience with writing RP characters. However, there was this girl that I was chatting a lot with at the time who had been a roleplayer for years. She joined this RP I was in, after we talked about it. It became a bit more fun when I could have my character flirt with hers. 

Anyway, a month later most people were upset with the GM, who started it, for a number of reasons. I'm not entirely sure why I did it now, but I stepped up as the voice for those who thought the GM was doing a bad job. An extended argument with the GM which lead to us falling out ended up with me having to start a new RP based on the changes people wanted to see. I did, mostly because this more experienced girl said she'd help me do it. Unfortunately real life caught up with her, and I was basically forced to do it with a co-GM which she'd picked. The co-GM was someone I didn't care much for. So like a month after I joined my first RP I became the main GM of an RP which had like 20 people in it. It took most of my time that summer to do that RP, when autumn came I had to step back because there was no way I'd be able to run an RP with 20 people and perform well in school. 

It was a great summer though, and I had a great time doing that RP as an inexperienced GM that people had some faith in. The co-GM that the girl picked and I are still friends today, even though I couldn't stand him at first, haha.