Average returns on Forex trading

Hi im new here sorry if this has been answered before -

Im beginning to learn forex trading,

what are the average return on investment per year for a forex trader say an experienced good one.

Also i read on here that some traders are averaging only 7% per year if thats the case then whats the point.

i have someone who claims to be able to double your money in a month is that possible? he was self taught and now works for a firm.

Absolutely anything is possible.

What will dictate your return is your “edge”, your risk appetite, and your psychology.