There is most certainly a purpose you are yearning to fulfill. Find it, know it, follow it, and you can change the world.
When you're not afraid to fail, you'll most certainly have the confidence to succeed.
Give your best to the challenges. And what you get will be even better.
Be thankful for it all. And beyond your many blessings, will be many, many more.
Be wary of those who seek to steal your dream. Be even more wary of those who seek to tell you what your dream should be.
Your goals, minus your doubts, equal your reality.