I like “Think and Grow Rich” also.
In theory, I believe that things like our health are in our hands but then the reality hits where things outside of us (such as a car running a traffic light) can have a significant impact on our physical well being. Keeping things like that in mind, what I believe is that “while we cannot always control what happens to us, we can control how we choose to respond to it.” For example, if hit by a car, we can’t mentally undo the damage of the impact, but we can choose to keep a positive frame of mind while we do whatever is necessary to heal from it rather than getting into a “why me?” mindset which doesn’t benefit anyone. That choice is 100% under our control.
Just my two cents.