Addiction to billiards

I have been addicted to cigarettes. But I tried hard to smoke less and it seems that I am shortening my cigarettes. On the other hand, I came to have a new addiction this semester. It's billiards. Actually I believe billiards is a good sport. But as I am too into it, it's being a problem. I don't pay attention to my works, studies. Also I spend too much money to it! I'm never a rich guy thing so I should save my money. But as I play too much games, its expenses are getting too much for me. So I got a new plan. Let's play billiards only on weekends, not on weekdays. I hope this plan would work because I'm quite desperate with my uses of money.