The moment we say, "I should feel …", we put an unnecessary burden upon ourselves. This is where the "expectations" can cause havoc.
During my pre-dialysis years, I found that being in the pool and exercising was probably the most effective coping mechanism for me. How interesting it is that you seem to feel the same way about the pool! Exercising in the pool is a safe way to work out, so I am very glad that you have found this to be true for you, too.
You've said that you feel great in the pool but that working out this much is draining. Perhaps you could vary your workout a bit? Maybe strength exercises one day and cardio the next? Regular workouts help us feel that we have some control over our lives and over our kidney function, and this feeling of having "control" is emotionally crucial.
I worked with a personal trainer several years ago; she helped me to create a strength training regime that I could do at home with minimal equipment. I need to begin again; the summer is relatively short here where I live. I do not like indoor pools, so I get a season pass to our Park District's outdoor pool each summer, and today is the last day the pool is open for the year. I swim in the summer and do my strength training the rest of the year, so tomorrow it will be back to the weights and bands. Anyway, my trainer emphasized the benefit of mixing up my workout so that I wouldn't get bored and just quit! Perhaps mixing things up a bit could work for you, too?
So, instead of cutting back to 3 or 4 days, could you maybe do your workout on those 3 or 4 days and use the other 2 days to just swim? Sometimes if I'm feeling tired but still want to be in the pool, I'll just walk from one end of the pool to the other, propelling myself through the water with my arms. There are sometimes other older ladies in the pool doing the same thing, so we might have a chat while we walk through the water. It doesn't sound much like "exercising", but it breaks the routine and is more effective exercise than one might think.
Oh, also, I have one of those kickboards, and I'll use that to "swim" back and fourth. There are all sorts of things you can do to vary your routine.
Are you sleeping well? Poor sleep over time will enervate even the healthiest of people.
You are right. The wait is hard, the occasional fluctuating numbers is terrifying, and the uncertainty is soul-destroying. But you are doing all of the right things. The idea is to keep your body as strong and as healthy as possible so that when a good kidney comes to you, your body will more easily handle the rigors of surgery. A healthy kidney for a healthy body! We all know that a pre-emptive transplant is the ideal, and it looks like the odds are good that this may be what is in store for you!
It is very hard work to feel blessed and grateful every damn day, especially when having kidney disease that is so severe that the words "kidney transplant" are being knocked about. Sure, you DO have things to be grateful for, but the truth is that there are also things in your life that make you rage with the unfairness of it all, the unnecessary worry and strife.
It is exhausting trying to find the balance between feeling grateful and feeling stressed. Both are valid feelings.
So, no, I don't think you are "expecting" too much. I think you are merely living in hope just like the thousands of other people who are in your same position, just like you've said in the very last two sentences of your post.