Maybe you should sit down and have another long talk with your father about cannabis use and why he wants you to wait. If you can give him a good reason to let you smoke for recreation maybe you two can come to an understanding. If your father smokes already, then he should be able to come to an agreement with you. He will probably respect the fact that you want to talk to him about it, instead of just disobeying him, in which case he will probably be stricter.