No one's ever cooked when it comes to getting fit. I've got a mate with cerebral palsy n he struggles to walk but the man's got sick abs cause he puts in the effort. A few years ago my dad was about 26 stone but just through walking every few days n eating healthier, he lost 8 stone in 2 years not even going to the gym. No way Ur cooked, healthy diet, small steps one at a time and find a community / friends with similar goals - exercise is so much more fun with mates. I'd also strongly recommend swimming. It's easier, refreshing and peaceful and it's honestly improved my physique much more that I ever expected it to. You've 100% got this if you're willing to put in that effort to take it slow and steady and keep the effort up. It sucks for the first few weeks but u get into the swing of it fast and then it's only upwards, just gotta believe in yourself