HELP

My best advice is to look through the reading list of users that have left good reviews on books you like or books that are very close to what you’re looking for. Once you find something that interests you read reviews and check the ratings. But because that takes a lot of time I recommend Troll Trap. (⌒▽⌒)

P.S. Make sure to follow people that have similar tastes to you. When you want a book to read check your following and that way everything is close at hand. (づ￣ ³￣)づ

I rarely read horror bcs I'm a scaredycat but this one is really great (idk if this can actually be considered horror bcs everyone has different povs of what they think is horror but yeah) This webtoon has everything that you just mentioned! Horror, action, mystery & psychological. It does have romance but that's not really the focus of the plot, the romance is more like something that passes, if you know what I mean and so here is it:
https://www.mangago.zone/read-manga/garden_of_the_dead_flowers/

idrk if this can be considered psychological but I'll add this bcs the egoist concept of this manhwa really gives you a different perspective:
https://www.mangago.zone/read-manga/bluelock/

Thank you very much for your advice and recommendation (~￣³￣)~

Thank you very much :3 Garden of the Dead is kind of interesting after I read the reviews, and I've read Bluelock. I'm just waiting for the updates.

You're welcome! Glad to be of help!