I like this post!
And I would also like to add something about happiness that I always try to keep in mind.
So, I think that it is important even when you feel truly happy to make sure that there are several things that make you happy. Someone might have great a dancing career that makes him happy (ofc not absolutely happy, but happy in general), while having no time for having a relationship and maintaining friendships. If that person has an accident and cannot continue his career, there is nothing else left to make that person happy, so he starts from the bottom when reconstructing his life. Or someone who has a great marriage but isnt fulfilled in other areas, if he loses that person, there is nothing else left again.
These examples are extreme, but what I want to say is that it is important to strategically organize our sources of happiness, so if one fails, we have the rest :D!

Have a nice weekend! :)