One more complication is that there are two aspects of self-reinforcement all mixed together. Age also partly determines which approaches you need to use with children or teenagers. With young children, you can teach parents and teachers how to modify the child's behavior by rewarding or punishing it. With teenagers, this manipulation of rewards frequently will not work because parents can't control much of the teenager's environment. Besides, teenagers are into self-control, i.e. doing their own thing, and skillful at resisting control.
Many behaviors produce a variety of consequences.
Research has shown that animals and humans tend to take the smaller immediate reward, rather than waiting for a larger delayed pay off. The 33 day offer, of course. Maybe immediate, no-wait pay offs are just more satisfying. Maybe life teaches us that promises may be broken. In any case, being aware of the appeal and excessive focus on the immediate pay offs , can help us cope with these situations.