Before I'd run advertisements on Google - which is very expensive - I'd look at alternatives like StumbleUpon and several other sites with plenty of real users and decent targeting.

I would consider reaching out to help groups around the US. There are zillions of them, large and small. I'd enable groups to set up their own subs on the site, which they can control and utilize for their own purposes (perhaps with some customization and branding). I'd print up promotion fliers perhaps and mail them out to help groups. Help groups are very easy to contact and find; if you're smart about it, they're an extremely inexpensive user base to get started with.

I'd also do something about this:

(my first experience waiting to talk to someone as a listener)

them: hey

them: hows it going?

them: are you there?

them: want to have sex with me?

You've got a huge challenge in keeping that site from becoming a cesspool.