Start with pulling all four wheels and inspecting the brakes.
It is likely not the brakes. It sounds more like underinflated/bad tires. It could also be a bad wheel bearing. If it turns out to be the brakes, you would repair it by replacing the pads and having the rotors turned by a machine shop.
it sounds like you should try and get the book if you want to learn it yourself in the long run its fun to repair your own car unless you don't have time you should get someone to repair that for you
Sounds like the brakes are shot! At this point I wouldn't want you to drive any further than your closest repair garage.
It sounds like there is a problem with the proportioning valve. I highly advise you to seek professional help with this repair. This is a very dangerous situation and needs to be corrected ASAP.
No, the word "beetle" does not have a long vowel sound. The vowel sound is short and pronounced as /e/.
Sounds like low pads. many have built in wear indicators that squeal to warn you.
sounds like your brakes are not releasing properly
sounds like the emergancy brake cable
Hair compare
Bleed the brakes. It sounds like you have air in the system.
Sounds like you need to replace your brakes very soon. You may need to replace hubs as well.
It's hard to diagnose without hearing the noise, but if you're sure that it is not the brakes, it could be dirt/sand/rock in the brakes. If you're hearing the sound all the time (even when not applying the brakes), it could be wheel bearings.