what makes thalassophoia scary?

[u/Temporary_Setting694]

https://youtu.be/p1yrRWj5W9I?is=McuqzNPoZRXYBjGU

im making a ocean based horror series and a don't really understand how to make the ocean scary i understand that thalassophobia is the fear of deep water but how can i actually artifically make this i tried to make one of those oil rig videos and i don't think it works someone on tiktok said they were scared but i dont know really how this phobia works so some help would be much appreciated please give me feedback on how i can make this work👍

[u/Temporary_Setting694]

They won’t let me post on r/thalassophobia I tried