I'm 33 and had been drinking since my 20's, have been sober for 75 days now. I have those days too, when things are good and you feel like drinking after everything is done for that day. What helps me is to think about how good I felt all day and think that if I drink tonight, I will only feel good until I go to sleep, then the next day will be horrible and hung over.
So for me, it's like would I rather have the whole day feeling normal or hung over. I actually had to ween myself off gradually because I was so scared of the withdrawals . Do you have any hobbies or other things you enjoy doing that could occupy that time that you would be drinking?