TexMax

The other day I replaced my rear brake pads, and now my brakes sqeek REALLY bad. There is a really high freequency sound when I am almost at a stop which i think is generally normal, but there's also a lower sqeek thats pretty loud. Also, it sometimes sqeek when I let off the brakes and go after I've been stopped. If I drive for a long time, my brakes get really hot--if i bend down beside the wheels I can smell a burning smell. I was thinking that mabye there is too much pressure in my brake system. How can I fix this? Thanks soooo much for any help!