Your body is made to give you maximum pleasure. You should masturbate as much and as often as your body can respond to. When I began masturbating at age 3 my parents (God bless them) told me what I was doing is good for my body and I should do it all I could.
One boy reported 22 orgasms in 24 hours.
When I was 13 I was masturbating often during the day and several times at night. I still do it at least 3 times a day, often 5 or more. I can't seem to get enough of my cock.
Don't let anyone judge you for what your body needs.