I think I’m going crazy

I have always had bad periods. I’ve always had cramps nearly every day even if I’m not on my period. I have tried 5 different types of birth control and nothing has helped. I’m getting diagnostic surgery for endometriosis but Idek how I feel. I don’t know if I’m just making up my pain or if it is authentic anymore. I’m just fed up and idk what to do. If anyone’s been there, please share some thoughts.