My mom is a workaholic, and I don't know who to blame. I thought I'd finally learned to accept it and be at peace with it, but my mom just inadvertently cancelled a planned trip with me this weekend. We were supposed to travel up north tomorrow night. Like a kid, I got so excited. I did my laundry early, I made sure my work was on track, I already booked my nails, and all that jazz. However, it's…