It sounds like to me you've done all the mitigation you can, Micha, and now you need to just let it go. Do your fast then just get right back to plan.

Just don't forget that your "treat" was not all it was cracked up to be. I've slipped a couple times and now things that I craved no longer call to me. It's weird, but it just doesn't seem worth it. Not that I'm perfect or that I won't get tempted (or slip) but most times I have I'm in the same place as you.