New Workout Routine

I have a number of workout routines worked out on a weekly basis. I have tried hard to maintain that intense workout schedule. But weekly workouts are just too much for my brain to handle on an emotional level. I have established my new goal as losing fat while gaining minimal amount of muscle, that means a lot of cardio and very little strength. Hence my new workout routine:

- 20 minute treadmill
- 20 minute spin bike
- 4 sets 10 reps of:
     - dumbbell curls
     - reverse push downs
     - back extensions
     - squats
- 100 situps
- 20 minute swimming