Well the wheelbarrow of poop has found you and dropped its entire load onto your head in one go. I wish I could hug you right now. You sound like you need it. Chin up as we Brits say, Enjoy your husband whilst he is home, make some memories to live on whilst he is away. You have got this, take it a hour at a time if needed and we are here if you need extra support.
I have read a few posts on here about buyers regret, mine included. Its a tough time, we are learning a new way to fuel our bodies and its not a simple fix. It took me nearly 9 weeks to be able to drink enough. I survived. I didn't do protein drinks but I did and still drink skimmed milk. I am allowed coffee so 2 large latte every day helps no end. Any liquid adds to your tally, ice pops, coconut water, soup, broth, tea, coffee. I found unsweetened tomato juice did wonders for me [ with a little hot sauce] I was told by my dietician to just get in what I could and things will improve. Just dont fret or worry, stressing gets us nowhere fast .