I know how you feel, I haven't RP'd in years so it's like the ultimate writers block when you first start up and try and find your feet with your character.. just take a look at how average my debut RP was. I've actually changed my characters personality a bit from what I initially put on my application, I just ended up letting it flow a bit more and found that suits me better.

For what it's worth, I didn't think your first RP was bad at all.. there's nothing harder than when you first start somewhere, you don't have any rivalries or real knowledge of people - really limits your material. You'll find your feet quicker than you'd think though, it comes back pretty quick.. I can see you've got writing talent