Masturbation is normal part of human’s psychosexual development. 
Almost all the men and 3/4 of women masturbate and unfortunately people don’t talk about it. 
Owing to that, we develops lots of misconceptions about masturbation. 
Always remember- it’s a part of our development and sexual tension releases through this act. NO scientific study claims- that masturbation can cause mental illness or any sexual dysfunction per se. 
It’s our myths associated with masturbation which further causes lots of problems.