Not everyone is able to tell themselves outright that they have an addiction. We can have different types of addiction and we usually associate alcohol, drugs and extreme sports, for example. Not many are able to say that they are addicted to sex, or simply to masturbation.
It seems quite normal that we satisfy our needs, explore our bodies, and simply relieve our stress by masturbation, jerking off, whacking the capucine, slurping up our testicles, getting it on, and many, many other terms that we guys like to use to avoid talking about onanising ourselves.
Playing with the penis started very early, which probably happens to all of us, of course I mean both sexes. However, girls rarely admit that they play with their spats, while boys make vulgar jokes about it and praise themselves for being very manly and forward, because they got themselves laid once again. Personally, I have never liked to boast about it to anyone or tell anyone about it, not even to my closest friends did I tell them that I have a growing need to have fun with myself.
I have been fighting this addiction for some time now, but it is not an easy and equal fight. You have your penis with you all the time, and the availability of any porn stimulus is at your fingertips, be it from your computer or your phone. However, one should probably start at the beginning, which is when it started and the person didn't realise all this, that this is something that will start to be very addictive, yet destructive in its own way, although many believe that there is nothing wrong with indulging yourself.
Getting to know your body is not a bad thing. Pulling your dick along with your balls out from under your underwear, inspecting it closely, pulling back the foreskin and seeing how sensitive the glans is, is nothing wrong either. Stimulating yourself as a teenager every day, several times a day, and continuing to do so until adulthood is no longer completely normal.
Apart from what I described in one of my memoirs about how I started to masturbate and learn about the pleasures of sex with women and masturbation, I also remember once finding an erotic toy in my mother's drawer -- a pretty big and stringy vibrator of a strange pale pink colour, the kind you'd find in old mail order shops and they usually came across as very vulgar and rather not perfect in shape or feeling in touch.