If you feel you are overeating, skip breakfast, and wait as much as possible. Cut sugar out of your diet. Seriously, it is quite easy. Especially stay away from sugary drinks! Healthy fruit drinks INCLUDED! They still contain sugars.
When it comes to exercising you can be a cardio bunny, but you might be much better off doing the following strength training exercises WITH PERFECT FORM:
1) Bar squat in the squat rack. 4 sets of 12-14 reps, 3 minutes breaks in between. Start light, very light! Do not use weights that you cannot do at least 12 correct reps with. Inform yourself about the correct form!
2) Deadlifts or Romanian Deadlifts. Your lower back, glutes and legs will thank you for it. Correct form and lower weights are essential.
Optional:
3) Bench press and assisted pullups /pullups (if you can do them).