My c-section is very much in the past(15 years), but I still remember the feeling of sadness that I had to have it. In my case I would not have my son, he was blue when they got him out, so it was the right call. However, it all happens so fast it kind of leaves your head spinning, and with all those hormones raging, you feel a bit melonchally anyway. Back then I did not even get out of the hospital for 5 days. After that I slowly began walking some everyday and then by 4-6 weeks I was doing modified exercise.
I feel that I tried too fast to get back to exercise, so my advise is to take it easy. You have a new baby to take care of, make that your first concern. You have the rest of your life to get back into shape. That is hard advise to take right now because you are feeling pretty blah about your body, but it will get better. The pictures at my son's first b-day party show me very fit and muscled.
Treat your body right and it treats you right.