Logged out and can't get back in

So I have an account that I had played a lot of matches on. I must have cleared my cache or something and no longer automatically log in. I can't remember the password (I must have used a really random one for some reason) and it won't send a reset link to the e-mail where my notifications were coming. I'm guessing maybe I used "sign in with facebook" but nothing happens when I click that now.