Recurring Staph Infections--- Help?

I started in November with 2 boils that became absessed. Because I don't have insurance, I tried to stay home with home remedies and ended up in the hospital with cellulitis(tissue infection) in addition to the absesses. I was there for 4 days in real big pain. From then until now ( February) I've had 4 more ( on the 4th episode now) and one of those sent me back to the hospital, too. I've been on these antibiotics: Zosyn, Vancomycin, Unacillin, Ancef, Keflex, Rocephin, Bactrim ( took entire doses, too.) and am now on Doxycycline. I bathe religiously, don't have HIV or Diabetes, and use a brand new razor EACH time I shave. And still I keep getting sick. My BF and roomate don't get sick at all, and they drink and smoke like chimneys. What gives? In November they'd said it wasn't MRSA, but after so many antibiotics and recurrences is it possible that I have created a resistant strain inside of me?? How do I get rid of these? I can't miss any more work and I still have no insurance.