The Summer of Everything by Julian Winters

Adulting is hard. Just ask Wes Hudson.
An avid comic book geek, Wes excels at two things: slacking off and pining after his best friend, Nico. Advice from his friends, ‘90s alt-rock songs, and online dating articles aren't helping much with his secret crush. And his dream job at Once Upon a Page, the local indie bookstore, is threatened when a coffee shop franchise wants to buy the property. To top it off, his family won’t stop pestering him about picking a college major. 
When all three problems converge, Wes must face the one thing he’s been avoiding—adulthood.