I'm surprised I haven't posted in this thread. XD
I have a ton of phobias, usually linked with a bad experience.
I got arachnophobia (fear of spiders) from seeing a spider crawling on my wall while carrying a sac of eggs, and seeing a wolf spider while swimming in a lake.
I am so scared of escalators, I almost fell down a flight of 'em when I was little.
This one is a little odd, but balloons. I hate the sound of one popping, and I remember during Christmas of 2017, my brothers and cousins chased me around the house with an inflated balloon and a pen, trying to pop it in my face.
I'm also terrified of wasps, heights, deep water, dogs, and drowning.