My best advice to retire in your 30's... Be born on 3rd base
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My roommate in college came in with hundreds of hours of flight time and his Commercial, Multi-Engine, and Instrument. His family had a C182, a Bonanza, and a C310R, where he obtained most of his flight time before he started flying checks. He majored in AMM, so he got his A & P License. For his 19th birthday present, he got his B727 Flight Engineer rating. I know, this would be an easy guy to envy/dislike, but he was awesome and didn't flaunt it.
He was hired by TWA by, I believe, 24 years old. He met a Christian Flight Attendant who helped him find God, so after his trust fund came in at 25, he went on to retire at 28 and began missionary work. This was the guy who used to carry a mini boom box and blender in his flight bag.....
Again, be born on third base!