Perseverance is the key

Perseverance means to do something continuously in spite of obstacles and the key to success in any field is the perseverance of a human being. Success in life doesn't come easily and there are many failures and hurdles that one has to clear before reaching the goal of achievement. I think that almost every successful person begins with two beliefs: the future can be better than the present, and I have the power to make it so. And if you keep persevering long enough, you will achieve your true potential.

You can only become truly accomplished at something you love. Don’t make money your goal. Instead pursue the things you love doing and then do them so well that people can’t take their eyes off of you.
— Maya Angelou