When you are thirty you start wondering what you did with your life. Hopefully there are many accomplishments you are proud of. When you are 40 - I'll get to that eventually. Not enought mentors. Never enough good role models and people to impart their knowledge and skill to others.
Life is a trail of mistakes.
You just learn to survive the journey and enjoy life along the way. Good and bad luck comes in streaks. When you are on a roll, keep the dice rolling, and when misfortune comes it is never alone. The best job is one that you like and get paid big bucks to do it. You can work at a job you don't like for lots of money, and you can work at a job you like for less money, but never work at a job you don't like for less money.