Hey Lauren!
I know exactly how you feel, but I can help you. Been through all of the beginnings, but if you give me a chance I can explain you everything through Skype. I'm doing my first gigs on this site for a HUGE discount as you can see, because I need some good reviews so people can see I'm reliable.
If you give me this gig I will promise to help you. I have to be honest with you, I'm VERY busy tomorrow, but monday I can make all the time for you, and I'm not only going to install the theme for you, but I will teach you all the basics you need to know to use plug-ins, customize your site and post new blogposts.
I can share my screen through Skype. I think that should make this worth the wait, right? You can add me on Twitter already @thomdevisser. I hope I can help you soon! I'm gonna sleep now, as it's 2:33 am here in the Netherlands. Hope to speak to you soon!
Kind regards,
Thom de Visser