[quote=Genkai]
Just write for you and your fellow buddies. A good story will come without pressure or anxiety.
[/quote]

This right here is fantastic advice. Before I jumped over to being a primarily Advanced roleplayer, I was slapping high-casual labels on my RPs and I'd happily been roleplaying with several players for months, many whom I consider friends. I realized after a month or two of running my games in Casual that the standards easily met Advanced standards. So when Newguild came into being, I moved my games to Advanced and the writing quality and expectations didn't change. It felt like a good move and it was! 

When you want to do a new game, ask some of your buddies if they'd be interested in doing an Advanced game with mainly them. It's hard to feel pressured to perform when it's people you're comfortable with, and most guys and gals in Advanced are super friendly. They're also usually the ones who participate in these discussions regularly because generally sharing experiences and helping less experienced players is something that only helps everyone. I've had fewer prouder moments on RPG than being told that I was the reason that a couple players tried hard to improve their writing.

Don't be afraid to challenge yourself! Just never forget you roleplay for fun.