Welcome. I just started on SR today too (third day sober), but it's actually helped me quite a bit already. I've faced temptation throughout the day and used the forums as a healthy way to avoid the poison and learn more about what this journey is going to be like.
Not sure what side of the business you work on (although I'm sure I could offer a guess based on your screen name ;-), but I've been in the industry eighteen years & definitely know where you're coming from regarding the environment. Drugs & booze are a way of life in our careers, but that doesn't mean it's the only way to live. Feel free to PM me if you want to chat; I think our business offers a unique set of challenges. Stay strong, you're not alone.