With Cyrillic cursive, the differences in alphabets is most noticeable with capital letters, as the Serbian snippet in Serbo-Croatian below shows. You can clearly see capital letters that don't exist in the Latin alphabet. Serbians, some Bosnians, and Montenegrans use the Cyrillic alphabet. Croatians and Slovenians do not.
As Peter said, if you post a picture you might get help. If you don't, your chances lessen.