Exposure treatment works. It sucks but it works. You just have to keep chiseling at it slowly but constantly. If you keep it up for long enough you will realize that feeling is almost gone when exposed to heights. The key here is being relentless at exposing yourself to what scares you (safely). In my mind, I just thought my brain was getting bored with always being scared and it just kinda went away. About a year in I went from not being able to walk on the hallway of the 4th floor of my college building to actually sitting on the railing (like everyone else). The thing is I wasn’t faking not being scared. I was genuinely not scared.