Don't count the days, don't obsess over it, don't give it that importance, just clear your mind often and let the desire come to you naturally instead of running after it. When you've mastered this you'll be able to actively appease the urges at will and handle them however you want but the trick is to even then never treat it as that big of a deal, if you do it will always live rent free in your mind waiting for your next moment of weakness.
It is only a minor inconvenience that doesn't control you, it's just an impulse you can manage however you want or even ignore completely with no real harmful consequence, It is only a thought, and absolutely nothing is going to happen unless you decde it.

Sorry for the bible but I have been through hell and back with these two things myself for as long as I can remember and I would really like to use all I've learned to help a brother in need if I can. Now that I actually can.

In my case I got a strong anxiety due to extreme stress my mother had during pregnancy and my sometimes shitty early childhood so that's why my OCD mixed with it and I got these very bizarre and violent urges to make myself feel pain specifically but overall I believe the core experience is the same and I think my little wall text may help you in some way.

Good luck anon.