Solitude is to the spirit what diet is to the body.
The future isn't written in the stars. There are no guarantees. So claim your adulthood. Be intentional. Get to work. Pick your family. Do the math. Make your own certainty. Don't be defined by what you didn't know or didn't do. You are deciding your life right now.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.