You don't have to be skinny and on trend to look good, merely to be noticed in certain circles that are ultimately inconsequential. And on that note, you don't have to look good to be of worth or value. You haven't failed at life because you don't know how to tie a bow tie or which denims should be washed and which refrigerated. You are simply on a different track with different values to a small contingent of online personalities.
None of it really matters. How you live and whether or not you can count that life a success will, ultimately, only be determined by you.