Hyperbole is a good one for this
Yosemite I thought it was yo-sa-might
Elon Musk. I thought it was pronounced like “Ellen”.
I say “ping-tails” instead of “pig-tails”. Apparently I did it a lot as a kid and insisted I was right so my mom stopped correcting me. Now I’m paying the price as an adult.
I still mispronounce cashew. Instead of cashew I say cashew. I just can’t help it.