How Would I go About Getting my own Insurance?

I'll be 17 in a few months and have not seen my doctor in three years and my dentist in six. My mother refuses to take me because we lost our insurance when I was 13.[Regardless she goes to the doctor three times a year and the dentist just because her tooth is sore or needs a cleaning, etc. And my father goes every three months to both Dr. and dentist and my brother goes to al kinds of doctors and psychiatrists and blood tests and all. Where am I in this? Apparently no where.] I went to my boyfriend's dentist appointment today adn he asked how much a visit would be without insurance and they told him $259 for clean up and X-ray. He didn't asked for teeth puling.[I need appx. six pulled an cavity fillings.] He told me he would pay half if my mother or me come up with the other half. So, I'm just getting sick of being excluded and in pain[physical pain and being sick.] I have a job and I will be moving out in a year, but my health status is getting worse and I can't wait another year. [Been waiting since before middle school and I'll be a Jr this year.] I need to see if I can get a diagnosis for the pain in my joints. [I assume it's the arthritis that runs in my family. All the women get it when they are about my age.] My boyfriend will assist in the payments, so that will help a lot. I'm especially worried about dental right now, health later on. So how do I go about this? What should I look for? My mother won't tell me anything about insurance and my boyfriend doesn't know much about it himself since he is still under his parents insurance through their work because he is in college and living with them still. I would like to ask his parents, but they don't need to know my condition right now.[If they knew, they'd think I'm irresponsible and end up like my mother, which it is the exact opposite.] I know it all depends on the company and whether it is through work or not and all, but I need a general idea.[My work only has it available to managers.]
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