Being you - does anyone have any tips or advice on how to make things better after finishing treatment? There are so many things I can't do now

I joined because after finishing Radiation early March, I am not me there are so many things I can't do now like going out days my house work, having to sleep in afternoon, permanently in fear of reoccurrence, having very little energy. I would be grateful if anyone that experienced  this and has found ways to make things better by supplements or reading helpful ideas I would be very grateful for any ideas.