I think it depends on what you're good at.
I'm going to toot my own horn a bit here. I'm the best translator I know (Spanish - English), probably one of the best in my city.
I make 2 - 3 times as much money as most of the people I graduated from college with, and a bit more than most of my translator coworkers at my company. I am among the best at my job, and I do well...
The problem is this: translators always have an easy time finding a job, but you can only go so high. From the position I have now, I have almost no hope of a promotion because I'm a great translator, not a great manager or supervisor. I'm so good at my current job as a translator that the company would be reluctant to promote me to another job.
So yes, I do better than most people my age, but I would have to get into another line of work to move forward from here. If I stay where I am, I will eventually fall behind.
The best thing I can do at the moment is to take advantage of my current good salary to save, save, save... then begin investing to have another income. Maybe I'll make myself rich that way