Masturbation is a very healthy thing to do. It is very normal and fulfills the basic human desire safely causing no risk.
You shouldnt feel guilty about it. Sex is for pleasure and not guilt feelings. Even if you are sexually active , married still you can have masturbation.
Dont go by what friends and society says about masturbation. As per medical science it is good for your sexual well being.
Next Steps
consult on practo online chat if need more help.