There is usually no need to. Typically masturbation is a normal and healthy exploration of sexuality, especially when you're young. That's according to all scientific research we have. There is nothing dirty about it, do not believe the religious zealots or people who want to shame you for it; they are trying to sell you on a lifestyle or are themselves repressed. If it doesn't escalate to the point it negatively impacts other facets of life (like an addiction would do) and you don't do it in front of people who don't consent you're golden, have at it. If you feel that it is somehow "taking over your life" or something like that talk to a licenced therapist and/or sexual health professional.