50’s male looking for information

One of those motivational speaker types said that you will be the most successful by meeting other peoples needs. I suspect you did a lot of that when you had a young family. Now that that is behind you, You may need another mission in your life larger than yourself. Hobbies may be good depending on your personality type, but that doesn’t work for everyone.

Maybe you need to find a way to contribute to something you consider worthwhile. Plenty of charities, little leagues, needy families.