Kinda popped/picked at a zit on the edge of "the triangle of death" it didn't bleed or anything. how likely is it that i'll get a brain infection/die?

Not Likely at all: Risk at your age and with one single small site of infection is very low.

Unlikely!: There's a lot going around about this "triangle of death" thing, but the risk is incalculably low. Don't worry about it. Stop popping zits, though, it'll make it worse and lead to scarring. Signs of a brain infection: fever, chills, blurry vision, confusion, difficulty moving your neck or having severe pain when you do so. Don't worry unless you have a combination of fever with one other symptom.