How long should you try? Until.
Maturity is the ability to reap without apology and not complain when things don't go well.
Learn how to turn frustration into fascination. You will learn more being fascinated by life than you will by being frustrated by it.
We all need lots of powerful long range goals to help us past the short-term obstacles
Pay attention. Don't just stagger through the day.
Don't ask for security, ask for adventure. Better to live 30 years full of adventure than a 100 years safe in the corner.