Hi LatinAndGreek,
I am very happy to see somebody from Croatia showing interest in Sanskrit.
My interest in Sanskrit, as of now, is limited to understanding its usage in Vedanta. As I know other Indian languages I am able to guess the meaning of a few Sanskrit words used in Vedanta. For the rest I depend on a translator who gives a word-by-word translation into English.
In your quest for learning Sanskrit, you may find the following sites of interest:
http://acharya.iitm.ac.in/sanskrit/tutor.php
http://www.chitrapurmath.net/sanskrit/sanskrit.asp
Note that if you face display problems you can try using Internet Explorer.
All the best!!!
Gabbar