The quote reflects the struggle of trying to portray someone in a different light than they perceive themselves. The speaker acknowledges the difficulty of depicting the person as calm and composed when in reality, they experience significant anxiety. It suggests an ongoing conflict between the outward image desired and the internal truth of their feelings.
Furthermore, the mention of drug use implies a deeper commentary on coping mechanisms, hinting that the anxiety is overwhelming enough that the individual might consider alternative methods of escape. The statement carries a tone of frustration mixed with a desire to support, ultimately leading to a poignant observation about the complexities of mental health.