Hi secretchord. I totally understand where you're coming from regarding succumbing to the cravings, they would come at me in the evenings, every evening. In the end, after too many failures, day 1's and despair I tried a method that partially takes the worst time, the evenings, out of play. I would force myself to get up much earlier than normal and walk for at least an hour, more like 90 minutes at weekends. This resulted in me barely being able to keep my eyes open at 9pm and bed/sleep was a much more attractive proposition than usual.
Insomnia is often a problem in early recovery so an additional benefit is that it helps counteract this and of course walking is good for us physically and mentally anyway, I still do it most days.
I think that doing something physically to fight against our addiction also helps us psychologically - no idea how that works but it does.
Don't despair and don't give up sc!