I'd think that one good step towards quitting would be to stay away from other people who are gambling.
Yeah it is a good idea to stay away from people who gamble if you want to quit. But I also think that maybe the choice of staying away is unnecessary. For me, it is just natural for us to learn the things that surrounds us. It is also natural to get involved with gambling if you are hanging out with other gamblers.
Staying away from them might help but come to think of it. You can quit gambling by learning self-control. It is really hard to stay away from gambling especially if it becomes your habit already. Denying yourself from playing will be hard but once you get used to it, you will know that it is worth it.