>If you want more money look at where you can save money (not eating out, buying generic products, etc.) and things you might be able to do on the side to earn more.
Oh dear god, the guy is depressed and now he has to stop buying his daily coffee too? And possibly a second job!?? You're an engineer, not a tollbooth operator. You're in one of the few fields that's actually growing and still pays worth a shit.
On the money front, take several queues from Ramit Sethi. Level up, do a cool side project with the latest React/Vue/Node and learn a bit about selling yourself.
Most engineers, even if they're really good, decide to take the humble, quiet route and demand a "fair pay". It's bullshit, it's a cop out, and if you're just 10% confident, you can increase your next jobs's salary with the money the other introverted engineers left on the table for you.