ifjeepmadeabike, what type of body do you have? Which of these types do you fall into?
If you are not an Ectomorph, chances are you have a Mesomorph body which has large muscle mass, requiring lots of upkeep. Why? You said you got up to 252lbs. by eating lots, chances are your natural body make up built some serious muscle. If that is the case I would go on a bulk diet and reap the rewards post-cut.
If you are in fact an ectomorph, I would stop so much cardio. As little as 2 times a week and go on a bulk diet, 5-600kcal above maintenance and start compound lifts. (Squats-Deadlifts- Bench-Pullups+ Pushups-Mil. press) 1.5g of Protein/ 1.5 g of Carb or more per lb of body weight. Should allow you to gain mass.