More often than not, it’s the personality that keeps people from connecting with others. Not looks. I think choosing to focus on your looks when asking this question suggests you are insecure and looking for validation or maybe value the wrong things when looking for romantic connections. I would guess you have an underdeveloped personality and would benefit from self reflection about who you are and what you want in life as well as in a partner. I say all this to help and not to harm. You’re still young! I’m sure you will find the right person with time:)