Hi
Thanks for your query.You are indulged in
masturbation since last 30 years and have noticed that your penis is shorter than what you expect it to be.Have you measured the length of penis if not then measure it by standing in front of a mirror . Penis of a length of 2 to 5 inches is considered to be a normal.Do not compare the length of your penis with that of others.as it varies from person to person.Masturbation has nothing to do with growth of the penis There are no medicines that will increase the length and size of the Penis..Please consult some qualified Sexologist/
Urologist for any issues related to your sexual problems.