When you are trading on leverage, you require above than avarage knowledge.
Contrats for Change, Forex all can be traded very high leverage. You put down 1 dollar, and you trade with 50, 100, 200 or even 400. You can make extraordinary profit with such a leverage or you can loose your money very fast in the process.
Are you sure the promise is not false? Why do you think you have above than avarage knowledge? And why do you think that people who are in that class also trade these instruments? Are you sure anyone at all can make money on it?
An advice: if you know somebody, ask him to teach you and show it to you.