Depo Shot-Is there another way to do it?

The first week of june i got the depo shot. Then at the end of june i got my period and i have been having still sometimes it is lite and sometimes is not. Right now it is heavy. I also went to my family doctor, the first visit she gave me these pills that suppose to stop the bleeding so i took the whole bottle. I still have it that was like middle of july. Then i went to doctors again in august and i still have it i told her about it and she just gave a another birth control cause i did not what the depo shot cause it has mess up my system. I still havent got the birth control cause i have short on money. Is there another way to do it cause i have so so tired lately and i have strenght to do anything.