I don't have health insurance and I don't know what to do. Suggestions?

I am a full-time graduate student. On 12/31 I was kicked off my health insurance through my parent for age-related reasons. I applied for the affordable care act, who denied me for having an income that’s too low, as I don’t work. My state has expanded medicaid so I applied for that, and was also denied as my income is too high (I worked through August). I can apply for my school’s health insurance, but it’s quite expensive and will use up the last of my loan money that I need to live off on. It costs about $220 a month.

To add more fun to the pot, I have to get a hepatitis B vaccination by ½8 or I won’t be allowed in the clinic, which will delay my graduation. I don’t know what to do.