Excruciating pain 😔

I'm always in agony when my period comes and I don't know why. As a comparison, I currently have a broken ankle and am in a cast and the pain from my period is 5 times worse than when I broke it. I don't know why this happens, my periods are always so so heavy and last for such a long time and I don't know why. I bloat so much, experience so much nausea and have the WORST cramps/abdominal pain ever. I can't take anti-inflammatories like ibuprofen, so I'm stuck with Tylenol (aka nothing). I'm only 18 and this has sbeen happening for a long time and I can't deal with it anymore! It's interrupting my daily life, I skip college classes when it happens and I can't keep going like this. I want it to stop but my Mum won't let me go on birth control, which could help alleviate the pain and my

period. I've read about endometriosis causing stuff like that and I generally seem to fit the symptoms, but I'm only 18 and isn't that like too young?? Idk what to do anymore 😔 It's a horrific nightmare. Does anyone else experience stuff like this?