Current Facebook Advertising Agent for a large online Real Estate Educator in the United States. (For 3+ years now)
FreeLance Advertiser for small business', both online business and good ol Brick & Mortar.
Good Questions - If you have no idea what to do to start with FB ads, i would suggest getting on the phone with someone who knows the layout of the system, and how to access all the specifics of FB's targeting system.
You could spend a lot of money really quickly if you don't know what you're doing. And little friendly guidance can go a lot way - and then if you decide it's not for you to keep trying it, finding a FB ad Manager would be the next best step!
Hope this helps!