Well good practice, even though you didn't understand everything.
Just think about how much you have learned. Way more than an average japanese person.
Sometimes I feel the same about japanese, but then I meet someone who is very bad and it makes me feel better haha
最後の部分はやはり「日本人」ではなく、「日本語」の方が正しいと思います。このように小文字で書いていますので、わかりにくいですね。すみませんでした。