YOU SAID:
hello i am very happy to be here
INTO JAPANESE
こんにちは私はここにいてとても幸せです
BACK INTO ENGLISH
Hello I am very happy to stay here
INTO JAPANESE
こんにちは私はここに滞在できてとてもうれしいです
BACK INTO ENGLISH
Hello I am very happy to stay here
That didn't even make that much sense in English.