A relative of mine is a lawyer herself in NYC. So I kind of how that works.
Suppose you graduate from a top notch law school such as Harvard, Stanford, Columbia, NYU, etc. Otherwise do not even attempt. After graduation you usually join a large firm. But you need to work your tail off in the first 7-8 years. The car service drivers will tell you that usually the lawyers are the ones who go home the latest. If anyone works until midnight, it is usually a lawyer. My relative said it was not worth it for a girl to become a lawyer. After the first period of 7 years, you either get promoted or forced to leave to go on your own way. Then you can join a financial company to be legal counselor or set up your own law firm. The latter is much harder.
Do you know that 70% of the world's lawyers are in the US? It makes it a shitty career.