I just got my new we the people bmx bike yesterday so I take it out today after building it to give it a test run and the brakes squeak so loud. *sigh* I‘m 15 an this Is my first bmx bike so help is needed.
I'm assuming the braking system is two rubber pads that grab either side of the rim. You can try spraying them with WD40 or just go to Wal-Mart and get new ones. This normally happens when the rubber dries out.