Whoa that's a lot to deal with! Hope you are finally on the mend! I'm almost 4 months out and I still haven't hit  100 grams of protein. 

I would suggest looking at what you can eat, and make gradual improvements. 

Look at how much wAter you can drink now, and increAse byan ounce or two every day or so. Also, try different temps and flavourings. I'm all about room temp water post op. That was definitely not the case before.

what protein can you tolerate? I was very conservative when introducing new foods. I would try 1/2 to one ounce. And only once per day. Then I'd have liquids the other two. That way, if I did have a bad reaction, it wasn't that much food. And I didn't have to wonder if it was because I ate too much etc.

keep trying, you'll get there, just not over night.

The body typically absorbs everything you eat that is digestible unless you have malabsorption.  It is not correct that you only absorb 30g "at once."  You will eventually process all of the protein.  

3 ounces of meat = ~21g of protein.  So you would need to eat approximately 15 ounces of meat a day.  High protein dairy includes plain greek yogurt. 100g of greek yogurt has 10g.  

I eat extremely low carb, however even if I only eat 1-2x a day, I alway**** at least 60-80g usually, depending, though I eat basically no vegetables so I have sleeve space for the protein.  It might be harder closer to surgery when you can eat less.  

The 30 grams at a time thing is a myth. So at least you don't need to worry about that :)

Google SIBO, candida, and FODMAP. . Sugar feed bacteria and candida. Foods Ihigh in FODMAP feed bacteria and candida. 

Once the bacteria colonize your gut it is close to impossible to get rid of them.  

I know I have SIBO and IBS-C.  IBS with constipation. Fiber makes my IBS and constipation worse. Low FODMAP diet, low fiber diet makes my live and my live a much more happy person. 

If I getting of plan - and eat things that makes my condition flares up - it may take up to a week of proper eating to quiet the gut and the the inflammation in the gut. 

Your body needs things that it cannot make itself. It cannot make vitamins -- that was the original definition of vitamins, before it got more complicated. You need a small amount of dietary fat each day, that your body can't get any other way. We need to get calcium from food or supplements, or our body will take it from our bones to support more important uses.

Protein is made up of amino acids, and there are essential amino acids that must be eaten. If you don't, your body will break down your muscles to get those amino acids. Once it has used skeletal muscles, it will start using heart muscle. Not a good thing.

Carbohydrates are nothing but energy. We need zero carbs, because we have lots of energy stored in fat. That's what body fat is for.