Hi @Alex Gallardo congratulations on taking the first step! Have you checked out the guides on this site for more information about wholesaling and how to get started? There are lots of strategies. If you haven't read the guides yet, I would recommend doing so.
I'd guess that when they say it takes a ton of money to do it right. They possibly mean to reach higher levels. Sometimes it is easier to have more money to spend on marketing. Although, that doesn't guarantee you're doing it right.