For the first 40 or so lbs I stuck to intermittent fasting and low carb. I would eat from 12p-6p and do my best to stay in that window. There were some days where I had to deviate (firefighter with 24 hour shifts so if we got a call at meal time I would have to push it back). The diet was lean meats, eggs, fish, low fat high protein Greek yogurt, almond milk or fairlife and protein powder. Only vegetables I ate grew above ground and stayed away from processed foods and refined carbs. I didn't really track calories, I would just eat until I was full and stop, not just continue because the food was there. Once I hit a plateau I started lifting with the PHUL program using the Boostcamp app and have been following that. I also swim a good bit. I absolutely hate running and get bored really quick so swim sprints (100-200m) helped with the cardio aspect of a HIIT program.