I had the surgery on May 9 though probably not the same as yours (bilateral pelvic floor repair and inguinal on right side) and I'm a bit older than you (41).
I was no way walking a mile a day in three days. I would say that after my type of procedure if you're walking a mile a day in a week you're way above the curve, a week and a half maybe above, two weeks average and if you can't do it in three weeks then maybe cause for some concern. All the way to full recovery you will get MANY pains that will make you question whether the surgery worked or not. They all seem to dissipate after a day or two, remember you're increasing your workload every day from an injured part of your body that got surgically repaired, it is NOT a sore muscle that simply fixes itself in a couple of days.
If you read any of my prior posts I was basically 'all better' in about 8 weeks, was playing my sport, felt only the slightest pain and but then something happened about 10 days ago and I feel about as bad as I did before the surgery (although the pain is a bit different and only on one side).
I don't think I made any mistakes but if I did it might have been in pushing myself (I followed the protocol but maybe the protocol was too fast for me). Dr. Meyers treats a lot of professional athletes, they bounce back faster than 'regular people'. You're young, you're athletic, you probably don't need the same amount of time that many other people do but don't kill yourself, you got plenty of time ahead of you. My prognosis will be whatever it is but I suspect another surgery is at least a distinct possibility; you don't want that in front of you.