whenever i type a space or press r , random letters & symbols appear. watch.

myb keyb oar\db won'tb stopb doingb this.

Something (or things) is/are probably stuck in there that causes other letters to be pressed simultaneously. I can't really think of any other reason. Did you clean it? Or at least shake it out if there is indeed stuff there?

Have you tried unplugging and replugging your keyboard?

Or cleaning it?

If that doesn't help, you should probably invest in a new keyboard. But also keep in mind that it may be a problem in the computer as well.

it's apparent that you need a new one.

but the reason could be water or some other kind of liquid. That's what happend to my last one. it was seirously just a drop of water that fell in the middle and the whole middle seciton woudln't work. :[

You need a new key board.