My advice. Ease up on yourself. I'm 45 with 2 teenagers (and a very patient husband) and mid-2nd year nursing. Up until this semester, I was mostly A's and a few B's, as well as trying to be super mom/super wife. It caught up with me and I'm at the tail end of a super-meltdown - 'really just staggering into the end of semester now. We put so much in to it because we have had to juggle so much to have this opportunity at our age. I've just got my first C & D this semester and it hasn't killed me or ruined my chances of going forward into next semester. I've been told by more than one RN that we will be so much more valuable because of our life experiences and in the long run, maintaining that A average is not going to matter one jot when it comes to getting a job. Go well.