Why is it so hard for me to find someone?

Let me start off by saying that I'm 28 (F) and a lesbian. I'm very feminine, fairly attractive, in decent shape, and have a successful career. I'm looking for a girl who also has these same qualities, because this is what I'm attracted to. But pretty much 90% of the people who show interest in me are girls who are butch/tomboy, extremely overweight, or both. And the ones that ARE feminine, usually are looking for a casual relationship or a threesome with their boyfriend! I've been on numerous dates with women over the years, but 90% of them have been with people that I find myself completely unattracted to. I really just resorted to going on dates with them as a way to get dating experience and perhaps make some friends in the gay community. I have never been in a relationship in my life and it has made me feel extremely hopeless and more and more suicidal over the years.

Some people have told me that I'm being too superficial, but I cannot help it if this is what I'm attracted to! I also do not understand why it is so damn difficult to find someone with these qualities that I myself possess! It's not like I'm asking to date a rich supermodel. There's countless women I've come across over the years who I have found myself attracted to, but every single one of them have been STRAIGHT. I've really started to resent being a lesbian over the years and feel like it has destroyed my life.