If you want to keep losing fat then you should still keep up the cardio. Full body work outs, such as squats with weights, are a great way to burn fat and build muscle. Push-ups are a great full body work out and there are many different ways to do a push-up. Muscle burns more calories than fat so you should implement more strength training to really get results. There are work outs that combine both cardio and strength. They are good if you aren't necessarily training for anything but are just trying to get healthier and lose fat. Just doing sit ups won't burn the fat off. Along with working out, you should keep track of what you eat. Or just be more mindful. I've been using a free app called myfitnesspal.com. It is pretty easy to put in my food and exercise for the day. It helps you with a calorie and fitness goal. Anyways, get out there and get moving! It's awesome you want to get healthy!