Install some Speed Bleeders at your caliper. Then suck out the brake fluid out of the master Cylinder and refill. Then crack open a bleeder screw and connect a hose to the screw and put it into a jar. pump your brakes until the fluid runs clear. Keep an eye on the master cylinder. Do it for each wheel. New fluid.
As for the Power steering, suck it dry and refill. Start engine and turn wheel lock to lock. You could even drive it around some turns. repeat. once the fluid looks like new fluid, you are done.
If you don't know what you are doing, find someone the does and have them help and teach you.
Tom