Several interesting things in your posting that I would like to highlight @stewie.wieno and I don't know whether to start at the end or the beginning:
I love that presentation you make at the end and I would like to join that group because I also have some doctor-prescribed illnesses and I would love to comment on what I do to underline something you say and it is the conclusion of your posting: (You have to do something every day worth living for).
The way you describe your attendance to the theatrical improvisation class, the dinner, the drink, the beach, the contemplating and admiring the blue sky seen in your photographs show that it is not doing big things, but, things that give us pleasure and, many times the greatest pleasure is in the small things.
Thank you for sharing.
Happy Sunday.
Cheers and greetings.