Get over it.

You fix one the others get jealous and start chirping.

Very helpful

You know how to do it right but refuse.

Help yourself.

The very reason I’m on the internet asking for help, is because I have no idea how to fix it!!

But again, thank you SO MUCH for your helpful and insightful words of wisdom

Replace the subfloor. Fix any underlying issues while the joists are exposed.

Creaking, it’s what floors do. Live with it.