A positive mindset is a must to realize your (dream) life. More specifically a growth mindset.
If you have a growth mindset, you assume that you can develop your intelligence, qualities and skills. And that practicing can contribute to this. You persevere in the event of setbacks and are open to feedback. Experience what it is like to think without limits and to let go of all limiting beliefs. Have faith in the success of your dream. And remember: the sky is not the limit.