Well I suppose none of us have a choice really, do we?
You have to let go of how it felt to be normal, and live in hope that it will change.
Letting go means expecting to feel sick, cutting corners, curbing social life and expectations. It means turning a blind eye to how you look (within reason) and how your house looks. Your priorities change and your world narrows down, just to survive.
Hope is important because we all need that to get us through.
I haven't had the life I want for 7 years now, because I have non-sleepers, AND a progressive disease which makes me cruelly tired. Yet I still cling to the hope that one day I might get some sort of life back.
Until that day I don't allow myself to think about my life. That way I can't get too depressed about it! The truth is, I live in fear of not coping the next day, like for example, tomorrow the kids are off school and I have no help dealing with their night waking and my very busy toddler. I have no idea how I will get through a 14 hour day alone with them, and have us all stay sane. All my thinking will be on how to keep us all safe and fed, there won't be any time for thinking about anything else!
From a practical point of view, I have to set out clothes the day before (helps not to have to think in the morning!) and set the table for breakfast. I always stay up to clean the kitchen rather than come into mess at the start of the day.
I made a list of meals so I don't have to stand and think what we will eat. I live off alarms and reminders for everything, all saves my poor tired brain from having to work too hard!