Yeah man, Just mainly cardio go for a run or swim. It helps burn off the fat. also try switch up the exercise. So add like mountain climbs or bicycles. Both ab workouts or russian twist for the obliques. So yeah overall try switch it up just to "confuse" the muscles and give it a bit of functional use. Also watch your diet.
Good luck. Once you get into a habit, that should start motivating you. Like once you get into habit, it would feel weird to not exercise and you'd be craving it.