Hi Im 15 nearly 16 recently about 2 days ago i couldn't get an erection, i tried everything. because of this my self esteem has gone through the floor and i don't know whether its a mental or a physical thing. Im mentally healthy physically active and never done drugs. I do masturbate and recently ive been taken vitamin C tablets and ive got loads of exams coming up please help i don't know what to do im so sure that peopel my age cant get erectile dysfunction.