Toxin: The symbiote spiderman

Firstly, I know that the title is stupid but I couldn't think of anything else. Now onto the actual description.

Alex Wright, a kid who has no real goals for himself, is thrust into the world of superheroes when he finds a symbiote by complete accident. Will these new powers give him a purpose? Will he use these powers for good? Find out by reading the story.

This is set in the Marvel Cinematic/Extended Universe but I will be making all of the characters save for the ones from the movies and shows.

All rights to the superheros, villains, symbiotes, and other things that aren't of my own creation are reserved to Marvel Comics, Sony Productions and etc.