Advice for A Sports Rehabiitator

Hi,
I graduated in 2009 with a sports rehab degree and since then I have been doing numerous rehab roles with several rugby teams, on a part time basis. I have extensive experience of practicing rehab.

I want to make this a full time role but every role I'm applying for don't even bother to reply. I'm finding this so frustrating as I want the opportunity to make this a full time career.

Has any one got any advice of what to do or where to look?
Or should I try and set up my own business?

Thanks for any help!