Interesting question, I'm sure you'll get many responses. Over 30 years ago, a young woman who was a college student studying to be a social worker wanted to interview me for her project. The question was "Where would you like to be in ten years and what would you like to be doing?" Along with me she had interviewed an elderly woman and another in her 30s. At the end of the interview she told me that the key is not to regret a thing. We make our decisions when we do and at that time they seem sound. I was 18 then, now at 50 I have not regretted any decision, not because they were good decisions (some were not) but because at the time they seemed sound. ....And I am where I had predicted doing what I had hoped.