Avoid what other people have defined as success: money, material things, or anything else. Define success for yourself.
Life is an infinite game with a finite amount of time to play it - so try to choose the things that matter most to you - that come from a place of curiosity, desire, generosity, passion, and awe.
No matter how good you think you are or what you may be known for already - reimagine yourself - be a child - embody the things you are trying to achieve for others.
Try to remember your mindset as a four-five-year-old child:
Exploring the world for the first time, experimenting joyfully, uncritically failing, laughing at your successes and mistakes, and gleefully sharing them.
Do this, and you will be successful before you even begin.