Not so New to RE, but new to Notes

[Albert Gutierrez]

I remember I went to a seminar once about note buying and they would give astronomical/almost made up numbers that made people want to get into note buying/selling, performing and non performing notes, but how realistically is this?  I want to ask in biggerpockets because it seems the info I find here people are actually willing to help and not "sell" you something bogus or false, I'm kinda a new to bigger pockets too so I'm navigating the waters of these forums and all the content it offers, let me know if you can shine some light on how I should begin my journey, I'm currently in the Los Angeles County Area