Since you are on the pill anyway and you have bad pms I can offer this advice...
Skip the sugar pills in your pack, just go to the next day 1 of the next cycle. Med students, pharmacy students, do this all the time, makes school less stressful not to menstruate monthly. Studies show that even four periods a year is plenty...You don't need to be so miserable.
You can also look into an antidepressant, though the former solution is much easier, and no you won't get pregnant nor inflict any damages.
When you're normalized and stabilized you can make a better decision. You want your independence? Guess what, it's yours already, nobody owns your life but you. You do have means to lead your own way absolutely. Implement them, have no fear. Get support from church, family, wherever...
