Congratulations on your huge weight loss! Without knowing more about what you're eating, it's difficult to answer this from a nutrition perspective. From an exercise standpoint, make sure you're really ramping up the intensity with your training. On a scale of 1-10, aim to be at around a 8 or 9 for a short period of time (30 seconds) and then recover for about 60-90 seconds. Repeat this interval training about 10 times and do it a few days per week. Good luck!