So sorry to hear you're in this position, keentohelp. I have disordered eating (ex-anorexic, now struggle with a BED). I understand your battle with all the food in the house, and the exercise thing.
Not sure if it will help, but this is what I'm doing. I am trying to stick to the same routine I would have in work (I'm now WFH). So I get up, go out for my daily exercise walk just as the sun is coming up, around 6:30, when I would normally be at the gym. I listen to a podcast and generally walk for between 40 mins and an hour. It's a lovely time of day, and especially nice as it's been so bright and sunny.
Get home and do some yoga three times a week - which I normally do in a studio, alternating between yoga and gym each day. I find it puts me in a good mind set, and there are SO many free videos on YouTube. I've also been doing a shorter stretch / flexibility session of around 20 mins at lunch time, when I would normally take a walk if I was at the office.
If you're not into yoga, there are plenty of other exercise videos online - maybe now is the time to start something new, if you have the space?
The food front is a lot more difficult. Do you have a freezer? Frozen fruit and veg is great, especially for making into soups or smoothies. The bags of mixed veg are alright cooked and eaten with a nice gravy! Frozen petite pois are yummy, too. You could also try tinned sweetcorn to add volume to say, tuna / chicken mayo. I find adding "volume" to my meals can help - so make porridge with lots of water so it's a big bowl, have fruit as a "starter".
Do you have anything you can do to take your mind off food? Reading / sewing / doing a puzzle / cleaning / anything else?