How do I change my brakes

Disc or drum? Front or rear? There's a lot of things professionals do to avoid noises and problems. There's a huge list of things they do not do to prevent problems. There's a lot of different procedures depending on what needs repair or replacement. Are the rotors and drums within the legal published limits for size? If you aren't aware of these things, you're better of letting your mechanic do the work. That can be less expensive than causing other problems.

There are links on this site to videos if you still want to attempt your own brake work:

https://www.2carpros.com/section/how-to-repair-or-service