Q: How do I become a successful, professional driver?
A: That's a very difficult question to answer. A lot of top drivers in the world had a family connection or patron that got them into motorsports. Of the ones who built their careers totally on their own, there are a thousand different stories.
I know guys who started out as car jockeys at a local dealer until they could convince the dealer owner to sponsor them in a race; guys who scraped pennies together to go through a driver development program like Skip Barber; and even guys who got in through winning at car driving video games and getting the chance to try their skills in a real car.
Race driving is such an improbable career and so many people fail. The only way to possibly succeed is to absolutely love it, believe in yourself, and never give up. Never. Never.
All the successful one drivers share a few traits: they are 100% determined; they have passion and confidence; and they are quick to spot an opportunity and jump on it. If you don't, someone else will.