Searching for Balance

Today I just needed some time to be still and quiet. I finished with my last class at school and the boys were in my office with me. They were doing what all kids do when they are together~ talk, make noise, touch each other, argue, etc... As I was sitting there trying not to lose it with them, it dawned on me~ I don't have any time during the day that I am able to just sit in silence. At the gym in the mornings there is music blaring. At home someone always needs something. At school, 400 someones need something. In the evenings we are making dinner (Yes, I make dinner sometimes!), taking baths, doing homework, getting ready for the next day, etc. Yes, I am thankful that I am able to go to the gym, spend time with my kids, have a job, cook dinner and do homework. I am just craving some time to sit in silence and rest, reflect and maybe breathe a little. When my life is hectic for long periods of time I feel myself coming unraveled. I feel like that right now. I need some time where I don't HAVE to do anything. I need some time with no responsibilities. Please tell me other people feel the same way. I don't want it to seem like I am ungrateful for all I have been given. I am so very thankful. How do you find the right balance? I am searching for that right now.