Post a pic. If you are too shy to post yourself then a pic of someone you think you resemble in looks and style. You'll get honest feedback. Lots of young females here as well as parents (like me) so you'll get a good range of ideas.
Tho GUoGS makes a good point: you need to ask out more girls. Develop a thicker skin about being shot down, it happens to everyone. Its that Gretsky quote about missing 100% of the shots you don't take.
Second thoughts can generally be amended with judicious action; injudicious actions can seldom be recovered with second thoughts.
--Cyteen by C.J.Cherryh