Dear @Tommy
It is a lengthy process, it’s the rest of your life. I don’t mean treatment, although that can be lengthy too, but living with the reality of cancer. It’s happened, it may recur. Like @Primek, I don’t think of it that much any more but I recognise that the reality is a part of me now. Taking things bit by bit is a very practical way to gradually accept that however well you are in the future, your thinking has changed. Everything may be OK, but it won’t be quite the same. It may be very good, though! We all live uncertain lives (who was worried about COVID-19 this time last year?) but cancer makes that realisation very stark. As @Sister says, counselling to help that shift in thinking may help. It certainly helped me through a period of uncertainty about who I was and the best way to steer my life. Best wishes.