Have had the good fortune to always have a career that I enjoyed. When I didn't enjoy a particular job, found another that was enjoyable; either within the company or another.
Knew that, like it or not, would have tom retire at 65. Ticked off the last two years, but not wishing the time away, just counting and preparing.
Nearly 18 years on, still keeping occupied, but not so frantically as before Covid. Try to help others if possible.
Blessed with good health and a loving partner, and family.
Advice? Avoid navel gazing and do something, (Hobbies, helping others, volunteering, U3A ) if only in a leisurely way, to keep mentally and physically active.