No, it's not easy.
I'm going to be straight-up with you: if you're here for the singular purpose of making a quick buck, quit now. There are better ways to do it.
Plenty of us DO make money, but it requires the same degree of discipline as any other business venture. More importantly, it will take a while before you're anywhere near competent enough to be profitable.
However, if you're enthusiastic about clothes, improving your personal style, and possibly making some loose change along the way, this is the place to be. I started three years ago. I still learn every day (we all do) but I believe I'm pretty good now... I think it was worth it.