I suppose you recently stsrted driving. Remember what i am about to write.
NEVER USE BRAKES ALONE WHEN GOING DOWNHILL BUT ALWAYS DEPEND ON LOW GEAR BRAKING. always go down in 1st or 2nd gear max so you brake less.
Otherwise you will be one of those people with sindh numer, lahore or sargodha number car guys whose brake either fail or heat up in northern pakistan because they are only braking when going downhill. JazakAllah.