2005 Chevrolet Aveo Q&A

2005 Chevrolet Aveo Question: i have a huge problem regrading my brakes ... they are very loose !!

I have changed them 3 times but the same thing happen... i started to think that the problem is not in the brake itself and that it could be in something else affecting its functionality Does anyone know what i can do/change to fix it ??? -
Answer 1
you will have to give a little more info on brakes being loose -
Comment 1
when i push on them the car doesn't stop immediately even if i'm driving in a slow speed ( 60 km/hr) it always takes a distance of 2-3 m to stop completely -
Comment 2
is the brake pedal spongy? -