blackjack is simple to learn, and the house advantage is not 48/52(as you said)..its around 0.5%...playing BJ is the safest way to clear WR and win some money...i posted both basic and advanced blackjack play in general discussion...check it out, and if you have any questions , plz be adviced to ask them....  
P.S. i advice you to practice BJ playing just for fun... all casinos offer play for fun.