I took bupropion to help quite smoking, I did really great taking it twice a day. I quite for 3 weeks. Then I started back smoking so know I'm taking it again, but I'm not getting the same effects withit. Before I did not even think about smoking, now Ican't tell any thing. I'm very discourage with myself. I wish I would have not picked them back up, my father passed and I felt as though I needed them. Why is it not working this time? Should i take more than 2 a day? Please help

hai