I need a workout plan that includes elliptical machine?

Do I need to train each part separately if I am doing elliptical for a 500 calories a day, right now I am doing the following 3days a week:
500cal on treadmill running
3 chest exercises 3sets each 15rep
3 back exercises 3sets each 15rep
1 abdomen exercise 3sets/15rep
biceps and triceps an exercise each of 3sets/ 15rep

I am 5’7 feet tall and weight 75kgs (163 lbs), my goal is to lose more 6-10 more kgs, but I feel like my workout is losing effictiveness. I also tend to get carried away when adjusting wieghts and end up overworking myself not to mention that my impact on the treadmill is so powerful that It made two squeak out. can you please tell me whats the right thing to do?