1. Breath is intimately related with sexual energy, which is why to transmute, we incorporate the breath to direct the creative force. We do so through deeper and more pronounced inhalations and shorter, gentler exhalations, specifically with Ham-Sah:
The inhalation is performed slowly, while the exhalation is short and quick. The reason? Obviously, in every person the creative energy flows from the inside towards the outside, that is to say centrifugally. But for the purpose of spiritual growth we must reverse that order. Our energy must flow in a centripetal manner, that is to say, from the outside towards the inside.
Indubitably, if we inhale slowly and steady, the creative energy will flow in a centripetal manner, from the outside towards the inside. And if we exhale short and quick, then that energy will become increasingly centripetal.
During this practice, one must not think of absolutely anything. The eyes must be fully closed. Only the Ham-Sah will vibrate in our mind, and nothing else. —Samael Aun Weor, “The Conquest of the Illuminating Void”
However, breath is not everything, since conscious will and remembrance must be present and active to achieve transmutation, not breath alone.
It is good to be mindful of our breath throughout the day, bearing in mind the centripetal flow of forces as opposed to the centrifugal.
2. Personal will is ego. What we want to develop is Christ’s will.
3. All psychotropic medications modify the sexual energy and add an additional condition to your work.
However, you have to weigh the costs and benefits in your own life with the advice of psychological professionals. Psychotropic medications are serious, but the consequences of lacking stability and functioning due to the severity of your depression could be worse without them. Only you and your Innermost can judge.