It looks like someone already wrote the inspirational post generator I was working on.
Seriously, though, he says at the end that he wouldn't want to be anywhere other than where he is today, and that he had to make all the above mistakes to arrive there. Which is true imho - I feel the same way. He also says his 18 year old self wouldn't listen. That's also true - this certainly isn't the first time I've seen someone say "don't drink to excess, don't watch too much TV, stay fit, and watch your personal finances." So his conversation with 18-yo-self would be wasted. I'd like to see a list of things he would say to an 18 year old that would actually lead to some change in behavior towards healthier living and a happier life. That would be something I haven't read yet.