time for brakes need help

If by "shuddr" you mean when you brake that your steering wheel shakes, then you need to get your rotors turned (autozone or checker will do it for about 7 bucks a piece). As for brake pads, I've had great success using NAPA brand brake pads. They are a tad expensive, but they last, and don't warp your rotors that bad.

If you can take a wheel and caliper off, you can change brakes.