I've been thinking for the past few months or so about dreams.

Dreams are said to be the gateway to the subconscious. The subconscious makes up most of our behavior and obviously can be given suggestions through rigorous conscious changes in making decisions or hypnotherapy where you are brought to an extremely relaxed state and given suggestions.

I'm curious if you could alter your own behavior through lucid dreaming in the sense that this is 'the ultimate suggestion'. For example, you could implement behaviors like studying for university more or quitting smoking, or as simple as finding tremendous amounts of joy in stupid pleasures, finding a penny, getting mail, etc.

Any thoughts or opinions, perhaps even an idea on how to tackle this objective. I have only studied psychology at the high school and entry level college level.
Kror