Diary

???? Hey, my Dear Diary (It seems like a name and so it is capitalized). Nice to meet you. First I should say thanks to my teacher Joram because he gave me the (you would only say "this advice" if you are refering to something which someone just told you or if you are referring to something that is written down) advice to write you. Actually I used to write keep (saying "write" here implies that you took ten years just writing your diary) a diary for almost 10 years until I went (past tense because going to high school for the first time is presumably in the past for you) to high school. But I just stopped after that. What a shame. But I'm happy to start it again from now. Goodnight my diary.

I am really impressed that you managed to keep a diary for ten years!  Wow.

I hope that makes sense.

Keep at it.