OK. Let's start at the beginning. There is an assumption that we all have a common understanding of what successful means and what that looks like. For example, many people can do all these things and still be miserable, unhappy, angry, or depressed.
For me, successful, means content, peaceful, happy, enjoying life, loving, caring.
Here is a short list I just made up based on the above:
Accept reality AS IT IS.
Love What Is.
Don't believe what they think.
Understand that all upset is based on delusion.
Don't care what anyone else thinks.
Don't take anything personally.
Can you add more?