I am not attractive and it's not something clothes or styling can fix BUT I can confirm how perceptions make a massive difference. About 20 years ago I started wearing ties and dress up, not just for work. If you never done this, try it out, get some normal (or as they call them now, "classic" fit) trousers, jacket, shirt, tie and marvel at how everyone treats you better. It's the kind of thing you only notice if it happens to you suddenly.