3 week long heavy period

I had a concert on oct 1st, i started my period that day. for the first few days it was just spotting, enough for just a panty liner. every single day since then has been more and more blood. not a single break day, not a slow day. nothing. just more and more to the point it’s dripping down my leg and pooling in the floor. it’s been 3 weeks, about to be going on to the 4th and i am incredibly tired. i’ve had trouble with periods like this my entire life and have always just been put on birth control, i’m BEYOND exhausted of it. i cant even live anymore