Only gonna explain the red in the comments

Big crowds: I simply just don't like being around people.

Roller coasters: I'm paranoid af around them. I keep imagining them flying off the rails and causing death.

The ocean: Only 5% of the ocean has been discovered and 95% undiscovered. There could be thousands of creatures underneath us and we would never know.

Elevators: I have flashbacks of being stuck in one for only 6 minutes and now I don't trust elevators.

Yes I am more scared of elevators then sharks and spiders, don't ask-