Saving a bitmap to gif or jpeg

Hey, I tried saving my bitmap avatar as a jpeg so I could load it, and I got all this funky pixelation stuff going on, not the nice clean bitmap I loved o so much. Saving it as a gif just screwed with the colors. :h:

This was all done in Paint :love: (love that Paint). Is there a way to save my bitmap as a jpeg or gif in Paint so it doesn’t get all funky on me?