I suffer from heart failure and having worked a very active job all my life, I simply can't keep up at work anymore. I'm too tired, too affected, my breathing isn't good enough and I am too old to start looking into a whole new career path, so I have decided to take early retirement for health reasons. 

I'm strictly speaking in terms of mental health and physical health here, but I'm wondering whether this early retirement will be good or bad for me. I have been used to being productive and active, and now I'm going to be stuck at home being ill. How should I occupy myself?