I just don't feel like it

I work a swing shift. One of the hardest parts about having a healthy regime is having a not so healthy schedule. Sleep is sporadic and sticking to a schedule is impossible. So today I woke up with the mind set to workout and go for a walk. Needless to say, I have yet to do either. I'm tired and my body hurts. I'm not in the mood to cook so for dinner I had pizza. Yep pizza. Cheat day. I hear there is nothing wrong with a cheat day. The problem is that I tend to beat my self up for those. I'm disappointed in myself for not being strong enough to work through my laziness. Unlike KB, I'm not sleep deprived.  Today I'm just lazy. It's ok to be lazy sometimes right?  Maybe I'll get up and work it out later on tonight. Yoga and 2 miles tomorrow. I must stay on track. Yesterday I was able to put on a top that I was unable to wear comfortably last summer. I need to keep that feeling in mind to avoid repeating today's activity or lack there of too many times in the future.