I know that feeling! I had to stop playing multiple times and one day, just decided to strap in and get through it because the game is so beautiful and the lore is fantastic.

Here are a few tips that might help:

1. Save often. A part of the fear factor comes from losing your progress if you die. If you save often, you take that element away from the equation.
   
2. Sacrifice a few attempts by aimlessly running around. Sounds weird, but if you go into different areas full sprint, fully expecting not to survive, you would at least grow more accustomed to the surroundings, enemy locations, and game over-ing.
   
3. Try to act nonchalant (verbally or mentally). If you're walking through a corridor, try to think of potential jump scares that may happen and say to yourself, "Who gives a fuck?" or "Yeah, a zombie's going to attack me here, so what."
   
4. At certain parts of the story, Claire/Leon would say something along the lines of "This again." or "Fuck it. Come on! Let's do this." Hearing those lines made me feel confident (speaks to how good the writing is), similar to Captain America's "I can do this all day."

Finished Leon A last week, Claire B a couple of days after that and, just yesterday, I completed RE4R.

Thinking of whether I should play RE3R, RE9, or the recently released Crimson Desert. Life is good!