Wake up early. Okay, so I'm not saying this is for everyone. In fact, it's not even for me these days. If your kids are late risers, take advantage of that morning time. Give yourself 45 minutes of quiet before the day starts. Check out FitnessBlender on YouTube for some awesome workouts (they have kid workouts, too!), have your breakfast at your own pace, do some breathing exercises, or something else you like to do but enjoy less when your kid(s) are around (alone time with your partner? knitting? probably best not to mix those, but you get the idea =) ). You'll start your day off on the right foot. If your kids are like my kids and arise early and/or at the slightest sound in the morning, see if you can get some exercise in! I try to go for a run or to the gym most mornings. Even 30 minutes does me a world of good, and I'm a much better parent when I've taken care of myself first.
Try quiet time. We know many families that follow this daily. My kids are readers (yay!) so they often pick their own quiet time in the afternoon. All of a sudden I will realize it is quiet and stumble upon them reading in another room. They are 9 and 7, so it isn't like the worrisome quiet when you have a toddler and the panic sets in, wondering what they could have gotten into (a time comes to mine when my son unwound hundreds of feet of string all over the house, in every room, around every piece of furniture, like a giant spider web, all while I was on the phone with my mom). If your kids aren't reading yet, have them rest or listen to calm music or audio books.
Go for a walk. Really, any way you can get outside will serve as a break. Walking is my favorite way to connect outside with my kids. You will be moving forward, pumping blood, catching some Vitamin D. You can even try walking meditation, Nature Bingo, or just noticing the things you see. My kids love to look for treasures on the ground. We all feel better after a nice walk, and I hope you will, too!
How to you find time for self-care? I am always amazed by homeschoolers with lots of children spanning many years in various developmental stages.