Some changes I think might be helpful world be to increase your intensity level and decrease your your duration on cardio sessions. As always you must listen to your body and be smart while exercising. Try running on the track or where ever you prefer to walk/run, get a good warm up and stretch in and then get ready to start burning some major calories. Run as hard as you can for 30 seconds then give yourself a 1:00 minute break. Do this up to 10 times, of course if you fill bad after six sprints, you either need to take a longer break or cool down and stretch and go for seven the next time.