Start slow! I find that people are most likely to rebound when they try to change everything at once. Start with adding more fruits and veggies everyday. Then slowly start to add more protein in your diet. Then after a while, take out some processed carbs. By doing these little changes slowly you’re more likely to stick with it!
Same goes for exercise. Don’t tell yourself that you’re going to workout everyday, because when the first week goes by and you miss a day, you’ll be upset. Start with 3 days of exercise a week, something easy like a short run or maybe take a workout class. Once you find yourself getting stronger and fitter, make your workouts harder, and add in a few more days a week.
If you have any questions, feel free to message me off anon and we can work together to get you started into a healthy lifestyle :)