Good luck, but also be prepared to bust quickly
I started playing poker on some home games in which the host knew a lot more about poker and he was willing to share advice. Freerolls are fine, but with large number of players it is extremely hard for beginner to run deep or even play for more then 25-20 minutes if this is turbo.
The best you can do in the beginning is to start from solid fundamentals on preflop game. I remember that most of my mistakes when I was beginning came from very bad preflop game. In
wikipedia article about starting hands there are at least few hands classifications. If you at least know with what hands to open raise and with what hands to 3bet in different spots, it will be a lot as starting point
.
Also, there are many youtube and twitch channels when you can watch poker strategy, hand reviews, how pros play etc. My favourites are:
https://www.youtube.com/channel/UCyI7FNTudkyALBh9N7hwI9Q
https://www.youtube.com/channel/UCfnDEiPDcVikMD-R1zS_lvA
https://www.youtube.com/user/gripsed
https://www.youtube.com/user/FloatTheTurn
https://www.twitch.tv/tonkaaaap
https://www.twitch.tv/gripsed
https://www.twitch.tv/xflixx_teampokerstars
As for books, I don't really remember what are the books for total beginners, but when you are better try:
Strategies for Beating Small Stakes Poker Cash Games by Jonathan Little
Easy Game by Andrew Seidman