How do you buy low in a sellers market?

[Joe Szymczak II]

Hello everyone! I am a proud newbie to real estate investing.  I have read a bunch of books, listened to many podcasts, and done all of the normal newbie research.  I have spoken with a couple different real estate agents and analyzed many deals using the BiggerPockets calculators.  I am very ready to take the actionable steps needed to make my first investment but I'm extremely nervous that as soon as I do the market is going to tank. 

Everyone I talk to says it's a sellers market and that property values are as high as they have been in a decade, which is great if you are selling and obviously not so great if you are buying.... 

I guess my question is two fold, should I wait it out and keep preparing/analyzing/learning or should I take the chance and buy something where the numbers make sense, and if so, how do I buy low in such a strong sellers market? 

Any and all help is appreciated, thanks in advance! 

Joe