Your dream contains several elements that may reflect your current thoughts, feelings, and experiences, particularly regarding your attempts to quit smoking weed.

1. The Man on the Citibike: His struggle could symbolize the challenges you face in your journey to quit. You tried to help him, which suggests a desire to support others or possibly a reflection of your own struggle in overcoming obstacles related to your habit.
2. The Indifference of the Other Men: The two men watching without helping may represent feelings of isolation or frustration you might feel regarding your situation. It could indicate a perceived lack of support from those around you or a reminder of how people can sometimes be indifferent to the struggles of others.
3. Derrick and the Weed Purchase: Derrick's desire to buy weed could represent temptation or the pull of past habits. It reflects the conflict between wanting to move forward and the allure of old behaviors that no longer serve you.
4. The Homeless Man with Wounds: This figure could symbolize the negative consequences of drug use, such as health issues or emotional turmoil. Your revulsion at his condition might mirror your own feelings about the damaging effects of smoking weed, reinforcing your desire to quit.
5. Overall Themes: The dream encapsulates a struggle between wanting to help and feeling overwhelmed by the situation. It also highlights the inner conflict between your goals and the temptations that arise from your social environment.

Advice: Consider this dream a reflection of your current state. It may be helpful to seek support from friends or groups who understand your journey. Acknowledge your feelings of discomfort regarding past habits, and use that as motivation to continue on your path of quitting. Surround yourself with positive influences that align with your goals, and be gentle with yourself as you navigate this process.