Try picturing your parents
There are several types of groups focused on sexual compulsions-- SA, SLA (sex and love addicts), and others. I recommend calling an AODA treatment center in your area and asking if they know of resources for sexual addictions. In most cases, people eventually 'grow out of' compulsive masturbation-- perhaps as a result of changes in hormone levels.
Another option would be to go on an SSRI (a prozac-like medication); a moderate dose of an SSRI usually reduces sex drive, and makes orgasm much more difficult to achieve.