Time? What extra time??

So....with 2 out of 4 kids in school fulltime and 1 part time, you would think I would get more accomplished right? WRONG!! It seems instead, I am just getting extra time to do the things I already did but I am not rushed through them.  Ahhhhh, I really feel like more should be getting done.  I get my cleaning done in the morning...which sometimes also consist of dr appt's and errands. Then, I pick up Jack from preschool... and it's snacktime, playtime and naptime....Laundry time for me and time that I work on my bible studies. Then, ooooooo it's 2:45 already?!? Time to pick up Ty and Q  and homework, snack and sports practices.....bathtime and bedtime!  So, I think my days are slowly running together and fading into each other. It seems like we have the same schedule everyday...BOOOORRRIIINNNGGG!! There is not enough time in a day! Does anyone else feel this way? I feel like I am doing so much, yet missing out on so much!  Are we inserted with the guilt factor when we become parents?  I have this feeling of guilt that I carry like a backpack everyday...sometimes I would like to just remove it and relax!