MacBook Pro 2012 fan suddenly running super loudly
I’ve had my MacBook Pro since 2012 and it’s ran perfectly up until a few weeks ago. The fan isn’t running any faster or slower, it’s just much louder. From the moment I turn it on it makes this loud continuous noise that’s somewhere between humming and clicking. I’ve already tried resetting the SMC and it didn’t help. I cleaned the inside with compressed air and a bunch of dust came out, but if anything it’s louder now. I know my computer is old and I should probably just replace it but there’s nothing else wrong with it, and if there’s a way to fix it I would really like to.
MacBook Pro 13″, macOS 10.14