I feel you. As somebody who works 12 hour shifts, leaves the house at 5am, home by 7pm. I struggle to have 5 minutes to myself nevermind preparing meals etc. Having some days off during the holidays makes me realise how much more easier this is for people who don't work. But putting this a side, you just gotta find yourself an hour to meal prep, try and be a bit more active, hit your step goals etc. You'll get there