This is a very broad question. I can’t say about myself since I didn’t do this professionally. There are a lot of nuances in this question: whether a person will play cash games or tournaments, what limits to play at, how much time to spend on the game. And of course, a big and perhaps the main role is played by how many years a person has been playing poker, what experience and skills he has, and how well he knows the theory. If you play live poker, the amount of earnings will be different from if you play online poker, since online poker has a lot of differences from live poker. So it’s hard to say right away how much I will earn from playing if I start doing it professionally.