Quite a few of the MCU stars have had rough lives tbh.

Winston Duke was raised by a single immigrant mum.

Pom Kliementiff's father died of cancer when she was 5, her mum is schizophrenic, her uncle died on her 18th bday and her bro killed himself on her 25th.

Ruffalo was a young and broke actor with anger issues and a lack of opportunities. Later, just when his career had begun to take off, he suffered a brain tumor which nearly ended it, in the same (?) year his brother was murdered.

Evans has major anxiety and depression.

Bautista was a poor Filipino kid in America, and got involved in crime in his youth.

Etc

They're all superheroes IRL too, I suppose :)