Is it okay to masturbate in moderation?

Recently I've been getting random urges to masturbate, however I am worried that this will bring me back down to my addiction.

I've been "clean" for just over a year, and I now have a girlfriend, and have been great. Before this however, I was heavily addicted to porn and masturbation, doing it either twice a day or right before I went to sleep. I felt terrible when I was addicted and I do not want to feel that way again.

Over the past month or so I've been getting urges to masturbate, however I haven't done it. Is it okay if I were to masturbate non-frequently, or should I keep my streak from dying?