I Found It Very Difficult. I've been writing notebook entries for almost a year and whenever I write them, many people corrected them and gave me advice kindly which I appreciate a lot. And I started to think that I can do the same thing for people who learn Japanese in return, so I tried to. However I found it very difficult for me to do that mainly for two reasons. First, it's difficult because I can't understand what the writers wanted to say due to the wired grammar which Japanese don't normally do. I realized how much I usually rely on the grammar to read the passages. Second, I think it's one of the most difficult parts of Japanese to learn for non-native speakers that there are three different kind of letters; Hiragana, Katakana and Kanji(Chinese characters) which native speakers can use them naturally as they grew up speaking and writing it. Many people who don't get used to mixing them make mistakes like using only Hiragana which makes sentences hard to read. After all, I'm not a professional teacher and I gave up correcting notebook entries. I'm searching another way to be the help for Japanese learners right now.