Sadly, we all have the 'recurrence' damocles sword hanging over our heads @Avagomum .. the trick is not to let it govern your life.
Get out there & just do what you love doing (for me it is fishing and playing ukulele) .... or even trying some new hobbies as well. I run the local uke group & we regularly perform at 4 Old Age Nursing Homes & attend other groups, spreading the joy of music & uke, so it keeps me busy with 2 x practises every week as well as the performances .... it is all good fun & very therapeutic - best of all - it keeps me BUSY! ;)
take care xx