Maybe consider something like I do? 3 days instead thinking of 7 days terms then apply maybe 80/20 which is 20 for savings and the rest for food and everything else? I mean, certain money is though and I've been there. Going to the gym and be consistent have been a challenge to me but there are times when I just go , fuck it, and leave for gym. Then, I would leave the gym happier and in more cheerful mood than my original mood.