13 year old taking Yasmin 28 birth control ?

Don't listen to Johnny he must not understand! I'm 14 and I take metmorfin to help regulate my period. I've been on it since I was 13. But it's not working for me so I'm gonna ask my doctor to help regulate my period! I have PCOS. I don't know your problem but I heard that birthcontroll is helpful to regulate periods so yeah