I'm pleased that you don't sound like you're having substance addiction issues. However, I'd recommend revisiting your entire thought process about this stuff

I'm pleased that you don't sound like you're having substance addiction issues. However, I'd recommend revisiting your entire thought process about this stuff the very first time you break one of your rules (like when you take them twice in a month for that one "really exceptional" situation). It's called a slippery slope rather than a precipitous drop for a reason and people don't get addicted to drugs because they're "not smart".