Hallo Kath ,It is hard. I have only recently finished treatment. My energy levels are low. I can only walk for short distances before my neuropathy in my feet stops me walking and I have to rest. I have not finished. I have just began. I am getting back to a new normal. This is what I do when I am becoming very fearful. I sit or lie down and let every part of my body relax. Then I make myself go somewhere in my mind. There is a lake near us that i used to walk to. I let my mind travel there. I make myself look at it smell it feel it and be there. Acknowledge your fears they are real and then find a distraction.
Whatever rocks your boat do it.