How long to perfect pig squeals?

I can pig squeal, not very loud, or deeply. so it doesnt sound good. its been 5 months now of obsession. i really want this.how do i get a stronger pig squeal. ive tried inhaling more harder, and that just stopped me. help!!

Can you say "Dueling Banjos?"

Talk to Ned Beatty.

OH MY GOD
my brother does that all the time
I hate it... so annoying,
I'm of no help to you, but its probably just a waste of time...
sorry.
Maybe try to make it higher ?

try to eat more slush?