A cannabis diary can be a helpful tool when trying to quit smoking weed. By keeping track of usage patterns, such as when, where, and with whom cannabis is used, individuals can gain a better understanding of their habits and triggers. Additionally, a cannabis diary allows individuals to reflect on the effects of marijuana before and after smoking, making it easier to assess the impact it has on various aspects of life. This awareness can motivate individuals to make positive changes and support their efforts to quit smoking weed.