No I don't believe that it's your looks that drive them away.

You just need to wait for the right guy to come across your profile.

Not wanting kids might eliminate 50% who do look at your profile as the other 50% of men may want kids somewhere down the track.

Not all guys your age will be into anime and cosplay either.

I don't think you need to change that. I just think you need to wait for the match to find you.