Eight words: eat less and move more, persevere! What to eat, you can check the specific calories of everything online, and make your three meals a day according to your situation, eat more fruits and vegetables and try to eat less meat. If you really want to eat, you'd better choose fish, which has less calories. You can choose steaming, boiling and the like, and it is better to eat less fried and braised.
As for exercise, if you can't keep exercising every day, exercise for at least three or four days a week for an hour and a half at a time, because fat doesn't start until we exercise for 40 minutes, and then you can do some warm-up before exercise! As long as you stick to your plan strictly, keep your mouth shut and persevere. You are not far from your goal. Wish you success!