Absolutely yes!
And you did very well that's how it's done.
In fact I decided to write this post just because many people invest thinking that they immediately become rich.
I have seen dozens of people who have invested on "Trading" sites and at the moment when the currency has fallen in value they have lost everything, as it was not actually in their possession.
Stories of people who have also thrown away thousands of dollars in a few days.
Greetings from italy!