First notebook entry: Introducing myself

안녕하세요! 내 이름은 카밀라 입니다 제 이름은 카밀라 입니다.

제 is the formal way to say "I/my". Even though you are not formal to yourself, the sentence you're writing is formal. Therefore, you refer to yourself formally as well.

저는 노르웨이 에서 온. 저는 노르웨이 사람 입니다.  

I think you translated "I come from Norway" literally. If you say that literally to a Korea, it means you actually went to Norway and came back or something. It doesn't make much sense. So you can just say "I am a person from Norway", which is what I wrote. 

말 좋아요 . (Mal = horse?) 말들을 좋아합니다. 

말 is both "horse" and "word/language". I think the previous person that corrected your journal thought you meant the "word/language". I think you meant the animal. My correction means "I like horses" in a plural form. 

First notebook entry: Introducing myself

안녕하세요! 내 이름은 카밀라 입니다. 저는 노르웨이 에서 온.
말 좋아요 . (Mal = horse?)

안녕하세요! 제 이름은 카밀라입니다.

저는 노르웨이어를 좋아합니다.

-

말

1) language, speech, word

2) horse

노르웨이어 = 노르웨이말