Hi there and welcome. Well, at 14, certainly you have family, correct? Dear, please please talk to your mom or whomever is your caregiver and go to a doctor. Your friend shouldn't be giving you iron supplements as you need doctor supervision for self treating for whatever is going on. It is absolutely ABSOLUTELY not normal for a 14 year old girl to bleed heavily for 5 straight months. YOu need to talk to the adult that is in your life and go see a doctor right away. good luck
You really need to see a doctor there are public hospitals where you can go to.. You may be losing too much blood.. your rbc should have dropped by now..you should tell your dad or a relative whats happening because you need help.. you probably have hormonal imbalances that should be corrected.. this is also reason why your also depressed because you are getting sick..