i really want to know how to make my own sigs so who ever knows plz help me
It depends on what kind of sig you want. First you need program, but there are tutorials on how to make your own sig. (I think)
Meh. I just use MS Paint whenever I wanna make an image. It may help if you steal other images from Google and just mess about with the pics, text and colours.
Sorry to be completely useless.