My hobby is learning languages and I grew up learning languages so it kinda gets stuck in my head and replaces my native language. Whenever I hear Swedish I cringe, even though it is my native language. I forget the grammar and use English grammar. I have to translate everything from English to Swedish before speaking to someone, I often get it wrong and say a sentence that is weird. I think and count in English. I am currently reading a book in Korean and now Korean is also getting stuck. I sometimes (Very often) Pronounce words in American English, Korean, Japanese, Brittish English, French, Spanish etc. I often forget that Swedish have three extra letters, "åäö". There are a LOT of words I forget so a sentence from me is usually like this "Hej, mitt namn is _"
Is it weird or is it normal to forget, replace and pronounce your native language wrong?