What to do when i feel that my life is empty ?

Inventory: If possible, find a therapist you can trust to support you as you evaluate things. A responsible adult from school, religion, etc. might do as a start. Really lookk at this and try to see what stands in your way. You may need to be patient, but there are usually valuable things to be found. Some might surprise you. Follow leads into deeper places, like another book by that author you liked, etc. B

Therapy?: Have you yet tried any form of psychotherapy? Typically, the optimal combination of things to treat emotional issues such as the ones you describe is medication (which, on your best day, is supposed to take the edge off symptoms) but the real gruntwork takes place in psychotherapist's consulting room.