Should i come back to WoW?

Hey people! I am in a desperate situation. I dont got any games to play X_X. I wanted to play minecraft or magicka but magicka doesnt work on my computer and minecraft well it is just boring when you are alone :(. And then i thought. Should i come back to WoW. And since i am very bad at making decision wanted to ask here for some advice should i come back to WoW when you know that i really suck at it i get owned every time in pvp and also i got a big problem of choosing which class to play everytime i am in some should i take a mage or a warlock or a warlock ( reach level 5 ) Man i had to take a mage ( reach level 5 mage ) Acctoly lets go with a druid and so on.. Too bad there isnt a other class :p. So yeah any advices so i can make up my mind? And also if you think i should go back to WoW ( warlock hunter or druid :P? )