How do skinny people deal with stress? When I was fat I used to eat every time I felt bad or anxious...

Avoid / cut from your life all people, activities and even thoughts that are stressful. That is how I deal. Let your will guide you. Never accept feeling bad, in the cornered imminent danger way. Confront all in the world that makes you uneasy.

I watch a copious amount of porn

I usually go for a run.