Um ... this thread went a little askew, I think. I'm really not sure what the comment about a "male brain" was.

Basically, dear, you need to live your life. HRT mess with your libido, but it's not necessarily true that they kill it -- usually that's if you're just on blockers, based on the people I've heard tell about it. But that's not the major deal. You're going through a massive life-changing process, and it's pretty disorienting, and that can really get in the way of dating, especially if it wasn't exactly priority one beforehand. It's no big deal, just standard advice for almost anyone: it helps to get your life together at elast a bit before you start dating other people. Otherwise you risk really crappy codependent relationships, possibly with abusive or manipulative partners.
If you know people who are trying to set you up, you're likely open with them enough to come out to. The fact that they are trying to set you up might just mean that they want you to be happy. If being trans and closeted is what's bringing you down, why not come out to them?
Also -- I'm no big fan of guys in general, but most of the ones I know don't much resemble dogs. Luckily, you're allowed to be a lesbian without being a man-hater.