Well, I would say it is often the case that your close friends circle is mostly built with people who share the same interests as you do. If your friends think they need to stop playing as well, it would make things much easier for you. If not, you can look for different hobbies with different people. That is what I did when I was spending a lot of time playing games; I realized the issue, I found myself new activities, and starting doing them, meeting new people that have been my friends in the meanwhile.