your body needs a couple days here and there to rest.. or your muscles will not build properly.. you should think about adding more time to your existing workout, or adding doing two a day..running is great cardio, but treadmills are not as good as trails or having roads with things that you have to manoeuvre around, which burns more calories, and gives you more agility..also building muscle will help you lose more fat because your body needs more energy to sustain muscles, so you will automatically burn more calories..
i really do recommend running outside rather than the treadmill because it s just so unrealistic compared to the real road.i personally hate the treadmill(:and you should definitely rest AT LEAST once a week so that you would give your muscles a chance to rest and recover.you should try strength training. it works great if you really wanna get toned(:
