Urges (trigger warning)

So, I'm posting on here because my friends are all asleep (11pm where I live) and I'm kinda desperate. I'm 3 weeks and 6 days clean from self harm, but I just randomly got really depressed and feel like doing it again. I have a past going two years back with this. I guess I just kinda need some advice. It's a really strong urge, I haven't had one this bad in awhile. Thank you, any advice is much appreciated.

Also, I should add that I am on medication for depression and anxiety, and go to therapy twice a month. It's been going well except for right now. Thanks again!