How Can Prolonged Vaginal Bleeding Be Treated?

hello doctor im 25 year old unmarried women. im suffering with bleeding problem.. i went to doctor 1st she prescribed me trapic mf 3 days and proluton for 21 days. i took for 21 days properly,then my bleeding stops .. then i stopped taking tablet.. after 10 days again my bleeding was started.. then again i went to doctor she told to take scan, my scan was normal and no anaemic also and then she prescribed same trapic and proluton and she gave injection depo provera , but that time my bleeding was reduced but not stopped completely.. then she told to continue the tablet. but that tablet didnt stop my bleeding.. but it was mild. then again i went she prescribed trapic with dulouton l for 21 days .. after taking the tablet , my bleeding was stopped within 2 days.. but after 10 days light bleeding was noticed. then mu doctor adviced to continue the tablet .. after stopping the tablet 3rd day of period she told to come.. now i stopped the tablet that light bleeding is there but its not like period.. im so much worrying.. will i get cure from this.