How do i write a biography about myself as an artist?

I'm not sure what "yay" alludes to, but I would suggest that you include one or two previous exhibits you've had, what type of training you had, your favorite medium and if you have a favorite artist you like to emulate or whose work inspires you. Or where you find your inspiration. Try writing several paragraphs about your life, background, training, etc. then distill out the 1-2 paragraphs you need. Hold on to both the longer version and the short one. This way you have a starting point if you ever need to do it again.