What To Do If Had Continuous Bleeding For 9 Months After Taking Depo Shots?

Hi, I got the depo dec -through march and i never got another one bc i was bleeding very heavy and i was in extreme pain. ever since then I have had bleeding nonstop for the past 9 months. I was wondering when the bleeding is going to stop. now i have this dark brown dried old blood and im concern what that is.. i dont know what i should try to stop the bleeding.. can u help me please??