A childhood belief about monsters

When I was 8 I thought there was a monster fish living under the tub that ate everything. Whenever I took a shower at night I thought it would come up from the drain and attack me unless I used a certain soap. The other soaps it would just eat but one of the soaps I thought it hated the smell of so it would keep it away. I called it "Peach Repel." I would cry when we ran out of it because I was sure the monster would eat me if I couldn't keep it away with the Peach Repel. Once I heard strange gurgling noises coming from the drain and I was SURE it was the monster and it was going to come and attack me and then I found out it was just water gurgling in the drain. I stopped being scared of the monster fish when I got into writing stories and in my book series I was writing one of the characters was a girl who invented a potion called Fish X that could turn her into a monster fish. Writing about the monster fish, especially writing about the monster fish actually being just an 8-year-old genius with a potion made me a lot less scared of it.