My advice, fall in love with sleep. That’s where you lose the most calories. Fill your hands with something constructive (because if you don’t, your hands will be back to having food in them), and your new favorite word is “deficit”. Don’t kill yourself in the gym when trying to lose a large amount of weight, exercise is definitely important, but pushing yourself to the max is meaningless while in a big enough deficit to lose a large amount of weight. 6 month process.