Dear Ann Cannon • I’ve always been a person who believes it’s important to “give back,” which is why I volunteer at my kids’ schools and also devote a lot of time to my church callings. I also say yes whenever people ask for help. I spent the spring working at my son’s baseball league’s snack shack, for example, because no one else would. My problem is that I feel REALLY burned out right now — like I don’t have anything left to give. But I don’t want to disappoint people who count on me, and I’m afraid I’ll feel guilty if I quit doing the things I do.