I'm not exactly a gray haired, Florida retiree - but I ain't a Start Partying at 11pm Guy anymore either. Frankly, I'm not sure I ever was a Start Partying at 11pm Guy. Seems like the youngsters start later these days. At 11pm, I'm having my last mug of wine and thinking about bed.
Anyway, I might have a gem or two for you. First off, some advice from the ancients: "Know thyself" and "To thine own self, be true." The greatest struggles in my life have been to determine just what it is I want. Achieving these goals has generally been a piece of cake, compared to figuring them out. That does not mean they were easy, rather it means figuring them out was hard. For example, I chased my wife for almost 13 years. Now that's a courtship. And, it's pretty extreme, even for me. So imagine how hard it is to figure out just what I want.
The level of your happiness is in direct proportion to how well you know what you want.
The second aspect involves integrity. An astonishing number of people are more than happy to ditch their integrity at the drop of a hat. Hold on to yours, you will want to admire it in your later years. It is a worthy thing to enjoy.
Finally I say to you if you live by these two principles, your troubles will generally be easy. Oh, you'll not think so while deep in the moment - but years later and upon reflection you will see that they were minor indeed. And, you will realize that being true is clearly what has aimed your life around the various potholes.