I would respectfully disagree with Alex's post; I think when you look back on this you'll shake your head in amazement that you made through such an incredibly tough time. You haven't failed; you've shifted priorities to survive at this point.

I'm hoping that your thyroid problems are starting to get sorted and your energy is starting to come back.

And think about those classes you're taking; was the point to get straight A's, or to complete the classes/degree program? Keep your keel headed into the storm and eventually it will pass.