Bulgarian is not such a difficult language, it has a much smaller vocabulary than English, and the grammar is quite straightforward. For some the Cyrillic alphabet is the sticking point, and they never progress beyond it.

It all boils down to how much you want to get to know the real Bulgaria by speaking to its inhabitants in their own language. If you do decide to learn Bulgarian, you can try the many language courses available, or individual lessons with a private teacher. The latter may often take place in your office or home. There is no right or wrong way to learn, though there’s a definite advantage to intensive courses, if you can spare the time.