Every trader has expectation but the matter is that how many of them can concretize their dream to reality. Large expectation drives a person towards emotion, on the other hand, moderate expectation makes a person happy and this is true to the bone in the field of Forex.
If you trade without knowing the right entry and exit points of trade and without using a risk management strategy, then I can tell you how much money you can lose. You can lose all that you trade with. Making profits in forex trading can only happen once you have enough knowledge and experience. Until then, work on managing your losses instead of dreaming about how much you can make.
No one can exactly predict how much profits they are going to make. Every trader has their own way of trading and you can only make profits when you have trading skills. Also I think you should be more focused on learning and understanding the market. Once you master all the skills, you can start making money.