Yesss.
Set your brake closer to the rim I think, and don't use tar
I made it, it wasn't perfect but I got up. I need to keep at it, I can do it now so I need to make it so I can always do it.
Some younger newer riders have been sponsored before, it just depends on who you're looking at being sponsored by.
I think it would be a greater achievement to sit back and wait for sponsors to get in touch with you, though.
edit: What's wrong with me?! That was spelt shit.