Finally admitting it to yourself is the first step in the right direction.
Try and think about why you are doing it. Once you recognize the reason(s) you will be able to avoid the triggers.
Are you scared you will put on weight? Do you think you are fat? ( Because you are not). Have you been eating/ binging because you are stressed and need confort?
Whatever it is, you must be mature about it and try to deal with it before it becomes serious and you seriously damage your health, your stomach, your teeth, your oisophagous and ultimately your life.
I have been through this when I was a teenager and on and off for years and it really isn't good. I binge because I feel quilty for eating. You see, I do not think that I deserve to eat something nice and that I am not good enough for it. But at least, knowing this, I have managed to control binging to about once a month or less and I try to avoid the causes. In any case, every time I binge and purge, I break a whole lot of capilaries on my face and especially around my eyes.
So, you see it is a road you do not want to take.