Firstly.. not too sound all judgemental but if you've been smoking cigs for 2 years.. I'm pretty sure your addicted. When i first started smoking i didnt think i was addicted for like a year untill i tried to quit and 4 years later Im STILL smoking.. Anyway moving on, I did coke for the first time about 2 weeks ago, I personally didnt find it that great.. it definatley got me high just wasnt a high as brilliant as i was expecting.. I'd reccomend trying it at least once.. I see nothing wrong with trying anything... But I suggest ur sensible about it and don't get too into it.