Hey Karolinka,
I don't even remember how I found your blog but I've been reading posts since noon and it's just so sweet to see an American experiencing Sofia and Bulgaria and handling it so well...
I'm saying this because I've met so many foreigners that constantly complain about things here and your perspective is just totally different.
I lived in Germany for a year as an exchange student in an international class there and one of my best friends is a girl from Montana,USA [not Bulgarian Montana :D] and this made me curious of how [other] Americans would see my country. 
You are just so open and I admire your enthusiasm to learn Bulgarian cause... let's face it - it's hard and you can't really benefit from the fact that you speak Bulgarian outside of Bulgaria... So, keep it up and good luck!
If you ever come to Veliko Tarnovo, I'd be more than happy to give you a tour of the city. :)