This question is rather complicated, and it is impossible to give an exact answer to it. Different speculators earn differently, and some even suffer losses, as in any business. However, the amount of earnings depends solely on you, more precisely on how competently you are prepared before starting work, and also how seriously you will treat to trading in any of its forms.
Many newcomers, especially the financial exchanges on the Internet, believe that they can earn easy money without putting any effort into it. Of course, such an approach is not able to bring success to a person, because it does not go through proper preparation, does not study the trading strategy, and does not want to do anything to earn money. Speculation is a serious occupation that requires you to take certain actions. It does not matter who you were before, but the real actions and the willingness to spend your time and energy are important, but to achieve the goal.