We all have the regrets at some point, its a whole new world. You need to give yourself a pat on the back for getting to a month out. I promise it will get better very soon. I did not appreciate how big a surgery it was TBH. It is a massive learning curve. Use your team when you need to, that's what they are there for. As we all have been given different regimes we do not know what yours entails
Lots of us can not make the liquid or protein goals. As soon as you can, you will feel so much better. Try your hardest to get the liquid in. Hot, cold or frozen. It doesn't matter which, just sip all day long. Lots of us still take drinks to bed too. One day you will be able to drink easier. Your internal stitch line will calm down and the swelling will dissipate. Then you can take bigger mouthfuls.
Lots of liquid without food will made you nauseous too. Apparently we have the same amount of stomach acid as pre surgery and this rises [GERD] when we sleep lying flat. If this is a problem, try propping yourself on pillows, a bed wedge helped me.
I had to drop the iron in my vitamins, it made me super nauseous. Don't be afraid to go back a step if the next step is too far for you at the moment. I never did puree, just looking at it made me heave.
You are not alone on this site, We will help you all we can