Merridew, check this post for a realistic appraoch to what pheromones can do.
Beyond that I can tell you that yes looks matter but not as much as you might think. You don’t say why you feel unattractive so I’ll just say that whatever it is good grooming and a little fashion sense can help. I think pheromones help me be more attractive even though I’m an overweight middle aged guy with a ponytail and zero fashion sense. I’m working on everything but the beloved ponytail and I think that pheromones help me to keep working. Best to you.