@sean it's ok to have a day or a week or a month when you didn't exercise to your fullest. You still exercised. That's like a ton better than not exercising, which was the other option. So good for you!

When you exercise often some days will suck. Some will be great. You didn't do something wrong, so don't let yourself get down on yourself. Persevere. Hang in there, as the cat says.