Agree for the most part. But success is not the same as happiness. And you described the state of mind being a willful act already.
If a person loses everything in a storm or earthquake but decides to feel content and glad that he survived.
When a person loses job but feels satisfied that he still has health and skill to get back to his life…etc.
Example of passive state of mind is being depressed or pessimistic about everything. Feeling of doomed and worthlessness, emptiness which cannot be explained otherwise is a passive state of mind. The person may or may not be aware of this.