My advice to you would be to get chronic through a friend who you know well and you trust not to rip you off. Study the smell, texture, and every other aspect of it so that you won't get ripped off when you buy it on your own
*EDIT*
Oh yes, and prepare to get baked off your ass. The first time I smoked weed I smoked brown, and I didn't feel high at all. Then my buddy Elliott smoked me out with some real shit and I had no idea what was going on. I was paranoid as hell, felt like I was in Alice in Wonderland, and everything was moving so slow. I was so inexperienced with handling hallucinogens that I tripped harder that night than the first time I dropped acid