A friend gave me tarot cards for my birthday but I find them addictive should I give them back to her or trash?

I've gone through this crisis before particularly when I'm going through a transitional time. I don't want to make my friend feel badly because she is really into the New Age and cards and things and I have been as well. I just want to try to change because I feel that they do more harm to me than good. I ask questions everyday and actually when I really feel confused I go online and pay a hefty $2.99 per minute. I know it's addiction in its silliest form but I admit that since Jan. I've been immersed and I want to really have faith again and to be free. So, should I just throw them away or tell her that I want to give them back because I know that she collects them and I don't want to waste her money?