I haven't studied at Bergen, I have studied abroad and I HIGHLY recommend it
It's both a unique experience and will look good on your CV.
Jobs as a foreign student can be a bit tough. Have you considered checking for Lithuanian scholarships instead?
That way you'll have time to focus on the study and socializing.
Eg. check with your counselors at your current College what they know about studying abroad.
Alternatively ask at one of your local universities. They usually have people that work with helping students to study abroad.
Also check with Bergen National Academy if they have any tips for you.
All 3 will probably know much more about financing than us.