100 Days and this shit still gets tough

I'm writing partially for accountability right now, because I'd really rather not relapse. I left the house so I'm protected in the meanwhile. I'm not sure why, but today has been probably the most difficult day of the entire streak for me to withstand the pressure. I think it's an amalgamation of factors: I have a small cold, it's been 3-4 days since I last had sex and so physiologically I'm more than "ready to go" again, I'm stressed about a tough test coming up, and I've been a bit depressed lately about my ex whom I broke up with 6 months ago. And for some reason the thought came up this morning that "oh yeah, I used to PMO" came up and sounded very attractive in the moment. The thought of looking at NSFW images was almost too much to handle, which is why I got out of there.

Anybody have any tips for your most difficult days? I might hit the gym later but feeling a bit under the weather, it doesn't sound too great atm.