Suggest Treatment For Low Libido

Hey, so I m only 19 years old and have been with my boyfriend for 9 months. I love him and he is very attractive but I m having problems. I just don t want to have sex. Ive always had a low sex drive but have always been able to at least pleasure my man at least once a week or 2 weeks. But its gotten worse. These past 3 months I just haven t wanted it at all. I just don t want too and can t get myself in the mood too. It s starting to affect my relationship. I d like to just want myself to want it more than I do now. And i don t know what to do about it? I am on birth control and I have been for 4 years. I have tried different things to increase my sex drive like eating healthy, staying in shape, and reducing stress but nothing has been working. Is there anything else that I could do that might save my relationship?