This is a piece of advice that you will do well taking on board.
As much as you were resentful of the older bloke driving you, he was right in his way. To describe him as uneducated is a tad arrogant.
If I were in his shoes, I might have tried gauging your emotional maturity before making certain points, but lashing out at him like that was gratuitously harsh.
Having said that, I wish you all the very best in life, as you pursue your dreams.