Most Helpful Girl
I think you need to send more emails than that. If I were you--and I know this may seem crazy--I would spend a good hour or two sending out messages to girls you're interested in.
I think the major issue is that many women aren't looking at your profile FIRST. They're looking at if the person is attractive and THEN their profile.
I'm not calling unattractive, I'm simply saying that this is how I proceed and I'm sure so do many other women. Also.. lol... there are a lot of people who sign up for services and don't use them. I have a Zoosk/OkCupid account I haven't been on in years... lol.