hi...so u r masturbating since long..but dont be upset, it does not cause any problem, its not a bad habit, its a normal phenomena of satisfying your sexual excitement in the absence of female sexual partner. people usually believe that masturbation brings weakness, but it isnt true..there are some issues i am mentioning here: - while masturbating there is a tendency for a person to ejaculate early - masturbation is usually done in a hurry - when person encounters actual sex they become somewhat anxious - anxiety does not allow them to perform well - these leads to loss of erection in between these are the common problems, but it does not cause any physical weakness..its all psychological. when a person while masturbation or during sex is distracted by some worries whether sex related or any social issues then he is not able to concentrate on the sex and the grip over erection is lost.. you does not require any medication, plz dont waste money on rubbish meds..dont listen to rumors about the masturbation..njoy it.. try to control your mind while masturbating, remove anxious feeling, keep away from disturbing thoughts.. perform regular light exercises, do yoga and meditation, engage yourself in your hobbies and njoy life..u r perfectly all right.. best of luck