Keep riding and getting the word out about yourself. Make sure you get a reputation that you're easy to work with.
I don't want to get you down, but you're just not at a major sponsorship level of riding right now. Local shop sponsorship is about where you're at right now. But, that's pretty much where every sponsored rider starts out at, so don't let that discourage you.
"People say that marijuana smoking is going to get in the way of my career. I say to them that on the contrary, my fighting career is getting in the way of my marijuana smoking." -Nick Diaz