Hello, Mulan! I'm sorry circumstances forced you into sales, even if the tickets were meant for something good. In my experience, few people excel at sales. I always found selling a discouraging experience.
Suffering from depression and taking meds makes socialising all the more difficult. More important than talking is being intelligently attentive. That is its own special skill.
Wishing you experiences that boost your confidence in who you really are.
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My dog

mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.