I,m the same weight at 60 as I was at 20, I eat what I want drink what I want but do keep it all in check ie drink like a fish weekends but have 4/5 days off in the week and I eat good home cooked food with the odd dirty burger treat from time to time I also never sit still even on days I’m not at work I,m busy for 4/6 hours a day walking dogs chopping wood fetching and carrying things to the boat, I have a half mil walk just to put my rubbish in the bin, it’s all about moderation and don’t keep filling your tank if your not burning any fuel ?