WBYWife,
Something I learned a while back was that stressing only robs you of the joys of today. There will be good days and bad, but worry over what's to come does nothing for the outcome. It took me a while to believe that. I had to literally tell myself "Stop!" when I would start the spiral.
I think all you've done for yourself is amazing. Grad school? Wow! Keep your chin up and remind yourself of what a talented and responsible person you are, taking on this challenge.
Keep stopping in. We always leave the light on
