It's true in every aspect of life that dogged determination will take you further than whining or wishing. Writing is no different.
Talent is great.
Education is wonderful.
But a stubborn will to do your best, every chance you get, is mandatory for a happy life. It's mandatory if you want your dreams to become reality.
The world isn't against you. No one is holding you back. It's up to you to live a little better everyday. It's up to you to attempt, to adapt, to stretch, to push and to enjoy the results of your hard work with celebration and joy.
Don't give up.