How do I resize a logo to make it smaller?

I am trying to make my logo smaller. I have contacted the help desk THREE times at Adobe and they are of zero help. I need to re-size my logo so it fits as a Facebook cover photo. Right now it's way too large. The Help Desk person made it too small.

And now when he went to the original file to center it, it is still too big, he keeps referring me to tutorials. Please help me resize it properly. I've been trying to change the font size but that does not help (logo is a word). Please point me in the right direction. Thanks.