There are times as a parent you feel so darn guilty and if you aren't careful, guilt can take over your life.
I feel guilty about wanting to sleep an extra half hour in the morning when the kids come bounding in yelling about breakfast, but recently I have started reminding "me" to give "me" a break (yes I talk to myself sometimes, it's how I convince myself to get out of bed on a cold morning). I'm tired not because I spend the evenings partying while the girls sleep, I'm tired because I'm pregnant with my third child, going to school to receive my masters and maintaining my freelance writing career. It's normal to want more sleep!
If parents aren't careful we will raise our children according to our guilt and not necessarily according to the standards we envision for ourselves and our children. What does parenting with guilt look like? You give an extra cookie because you got dinner on late, you buy another toy because you haven't been home as much as you've wanted to be, you hear "Gimme, Gimme, Gimme!" and you think "Well, I hate to say no because..."
When you parent with guilt you end up questioning your standards and values while crumpling at the slightest resistance which your kids will notice, expect and exploit. So girl, let go of the guilt. We're not perfect and most of the time the kids won't notice!