Okay frugalistas I have a car question

My 2012 Toyota Corolla runs like a champ (natch) and only has 90k miles on it. But the clear coat has failed, the paint is chipping, and rust is about to set in. It looks like shit and is frankly embarrassing.

I feel like I need to protect the raw metal now showing where it's chipped. It's only gonna get worse. But damn, car painting is expensive AF. Any suggestions?