please dont say you're close to starting a poker career bud. you're thousands of miles away from it. yep, you need books. but you also have to read at CC and digest the info, as well as watch poker videos at various sites etc. why cant you put into practice pot odds
etc into freerolls? I play them to practice plays/styles etc, works for me.
My advice, learn learn learn, and play play and play. get a bankroll, practice BR management, win money, move up, win more money, move up again, then take a month of playing 6 hours+ of poker every day and see how you do. if you are a winning player in this mont, then, and only then, think about turning pro.