Yes, your reaches are all reaches. It is impossible to chance for the hyper-competitive colleges. I’d take time to think about what you want in a college other than prestige – for example an urban school with a large core curriculum like Columbia will be a different experience than say the more rural Dartmouth or a college with no required classes such as Brown.
Focus your energies on creating a college list with affordable reach, match, and safety schools that you would be excited to attend.