Yes one inhale. Serotonin supplements might help, but I've found that cannabis works better for me, and I think that because the process of smoking is a much more quick and effective method of making that change in your brain than by digestion of a supplement. Alcohol increases my fluency despite it affecting dopamine in the brain, but I don't know the science behind alcohol and how it reacts in the brain nearly as well as I do cannabis! I would encourage you to try cannabis at least once. The experience is much different than many people believe it to be due to propaganda. You are entitled to your own opinion, and the best way to form your own is by experiencing the subject first hand