Today’s Guest Blogger Lara Zielin: I often have the feeling I’m in trouble. It’s this pervasive unease, like I’m doing something wrong. The problem is, I don’t know WHAT I’m doing wrong. Which means that if or when I get in trouble, it’s going to be a terrible surprise. Because of this, I have my antennae up all day, scanning, looking, wondering what I could be doing that’s awful. I mind my P’s and Q’s and I try so hard to do everything right. I try to stay busy. I try to be so, so good. But some part of me knows it won’t be enough. Trouble is still a-comin’. Which means by the time I get to the end of the day, there is this exhausted part of me that is BEYOND…