Need to see a doctor

Matilda

I really need some help. I'm 16, 17 in a month and i need to see a doctor and be put on birth control. I live with my biological mom and step dad in Minnesota but they are not my "legal guardians". My legal guardian lives in Louisiana right now and will not sign the paper for my parents to be able to sign my papers for me in place of my guardian purely because they're too lazy. I was on birth control last year before i moved in with my parents and it helped a lot and i want to be on it again but i do not know how to get it. Can i go to the doctor by myself to get it? What doctor would i need to see and how would i go about it? I have a job and work about 20-30 hours a week so i have money i can spend on doctors things if i have to. How much is birth control and what is the least expensive kind i can get that will still help my period?