Is there such thing as "too much" masturbation? Will it affect me in the long run?

Urban legends. There is an urban legend that made actual news a few years ago: http://www.evolvingscientist.net/2011/08/dammit-its-fake-coming-forty-two-times.html. There was actual boy who died from "over-masturbation". However, there is autoerotic fatality. Please be aware of this for personal responsibility to yourself. http://en.wikipedia.org/wiki/autoerotic_fatality.