The answer is not money. Success is when you are good at what you are doing for a career and are recognized as such by others. If that success provides you satisfaction and happiness, then you have the right career.
Caring about the quality of you're work in you're industry, loving the industry that you're in, feeling good energy from you're work and you're industry, setting high standards for you're work, connecting to you're customers or clients, making a difference with you're clients. Exciting you're clients with you're work, aim high not low. I meet alot of americans who aim low, aim high. Produce very high quality work, become a leader in you're industry, have strong ambitions, apply the many years of school work that you did (ie every american has had to go to school for like 15 years) use everything you know, put everything you have into it, make it work easily, sell you're product or you're achievement or services, be a positive person which is very rare in the US. most americans are negative toward each other and are doing themselves a disservice with their 'hate speak', cut down on the hate speak, go professional when all the pieces fall in place, look to you're one parent or two who've had success and see that it's possible.