No doubt. As someone who also struggles with anxiety, I’m familiar with how these games can kinda mess with your nervous system responses. Even on my best days, I can’t play a Souls game after dark, at least not if I plan on getting any kind of restful sleep.
But anyhow, I don’t think that there is a “real” way to beat these games, especially not the first time around. There’s no shame in using wikis or YouTube tutorials to find a way through that works for you. What I love about the games is how adaptive they are. There are so many ways to make these games “easier,” and not just summons. If you aren’t above cheesing through the late game, you can usually find some areas early that allow you to farm a lot of experience (such as the Lecture Building in BB) Once you overlevel your character, you can usually squeak through whatever’s blocking your progression, or backtrack to find important items you missed previously.
And even though it feels awful to lose a whole bunch of experience because of a dumb mistake or powerful monster, these games are actually low-key forgiving, since experience points are way less important than the literal experience you gain while, y’know, playing the game. Treating individual sections like puzzles, learning enemy attack patterns and placements, experimenting with different weapon types, all of these things helped me to keep going when I got stuck (Capra Demon, DS1) and lost hope. So, If you keep going, good luck! Your breakthrough is probably closer than it seems!