Welcome. I'm a 24 year junkie, clean for 418 days.
The path to success here is posting Roll in your quit group. Yours is June '17. If you check your ego at the door, buy in to the system, and keep your word, you are virtually guaranteed to stay quit.
Keep in mind I'm not saying it's easy - quitting nicotine is one of the hardest things you will ever do. Lean on your quit group members. They'll be going through the same hell you will be. The same hell we all went through.
The freedom on the other side is well worth the price.