Hi, I am sorry to hear about your problems. At this age, these symptoms could be attributed to hormonal changes. Or there could be some other underlying issue depending on the frequency and severity of your symptoms. If these symptoms have been occurring for very long, I would suggest speaking to a counselor. Incase you don't want to seek professional help, I would urge you to speak to a trusted adult or even a friend about your feelings. List down your strengths and find an outlet to use them. This will make you feel more empowered. Good luck and I hope you feel better soon!