I uninstall my gimp again, because it really doesn't support my windows type. T_____T

can you suggest more poster editor? I'm so sososososoososso deeeeeeeesperate. It's for the sake of my shop. I really want to make posters, I can't lie without it. Miaaaaaan. please answer, especially those grpahic designers out there :< I'm crying blood right now. :((