A restless power - an avenger fanfiction x oc

In a world of superheroes, Sacha's power is more a curse than a gift.
Struggling with his ability to manipulate sleep, he's haunted by fainting spells and an unstable life. When an encounter with the Avengers pulls him into their world, Sacha must learn to control his powers-or risk losing himself, becoming a bigger threat than support.
As he battles inner demons and external threats, He discovers that the line between hero and victim is pretty thin, and the only way to save himself might be to save others first.

He might also meet the family he's always needed in the avengers.

(there wont be any smut as the main character is asexual but there will probably be romantic relationships anyway ;))