I am part Serb (My mothers side of the family). My great grandparents came from a farming village outside Beograd. I can read and pronounce Serbian better than I can conversationally speak it. I can also write some. I am still learning. I can likewise do the same with Russian which I actually am a bit more proficient at.
Serbian, at least to me is very straight forward. The letters are pronounced as written. I actually prefer Cyrilic to latin. My understanding is that Serbs predominately use Cyrillic while Croats predominately use Latin lettering. Yes, I know there is some crossover.
Нека вас Бог благослови све!