LEARN THE COLOR WHEEL
it shows which colors on you match your skin tone and how certain colors look right on you
figure out what kind of clothes you lean more into like y2k, street fashion, casual, soft girl, cottage core etc.
go on pinterest and look those kind of clothes or describe what kind of clothes you like to wear and see if you like it
set up a vision board with those clothes and your type of body or go on and editing website ( pics art, capcut, adobe , adobe exspress)
screenshot a picture of the clothes you like and cut or crop it so it can only be the shirt and pants or dress ( you don’t want the background of the original picture)
then have a full body picture of yourself then lay the cropped or cut clothes on the picture of you