Well it doesn't sound like you have much of a problem if you don't feel the need to masturbate and you aren't suffering any adverse effects. It's certainly odd and you'll want to be cautious but it's not a life-threatening decision as long as you lead a healthy life.
If you're not masturbating on a regular basis you'll want to be hyper aware of your emotional state. If you find that you are reacting strongly without good justification at any point in your life you may want to re-valuate your frequency of masturbation. Self-touch for men is specifically a way to balance their emotional state. You can also ground yourself with medication but I strongly discourage using medication to duplicate the effects of a normal body process.
Even though you're young I'd recommend you begin annual prostate exams. If you're not ejaculating daily it puts you at an elevated risk of prostate cancer and urinal dysfunction.
There could also be other risks I'm not aware of. Definitely discuss this with your doctor just as you would doing anything that 99% of men don't do. If you confide that you never masturbate and your doctor doesn't bring up the risk of prostate cancer you definitely want to get a second opinion.