for me it’s about not doing to much even though I might feel like it because the after effects will be bad news. I work on a 10-15 minute basis. I set a timer on my phone and I have disciplined myself to stop after that very short time and take a rest. Play on my iPad, have a cup of tea, do a bit of embroidery. Perhaps then I can do 15 more minutes.
The desire to just do a bit more until you are finished can be overwhelming but I will end up exhausted and wiped out.
I make a meal for me and my mum in stages. It takes forever but I don’t feel like a dead duck afterwards.
Your dx is new so the memory of what you used to be able to do will be very clear and will make you frustrated. I’ve been at this two decades now so it’s my reality and I don’t rail against it. To find your optimum time keep note of how long it takes you to feel tired when you are doing things. Once you have a number start forcing yourself to stop even though at that moment you might feel able to continue.
I was describing this system to a friend (who also has MS) and she was horrified at the idea of stopping half way through mowing the lawn, for example. I’d rather do half a job today and half tomorrow, it will get done and I will still feel human.