Domande riguardo a frasi esempio con, spiegazione d'utilizzo di "Jul"s

A: × JUL 17th 2023 in TOKYO, so hot sunny day!
✓ JULY 17th, 2023, in TOKYO, a really hot sunny day!

× I don’t know the reason and root, it’s called “Ocean’s Day”or “Sea’s Day”（UMI no HI）.
✓ I don’t know the reason nor the origin, but it’s called “Ocean’s Day”or “Sea’s Day”（UMI no HI）.

× The difference between “ocean” and “sea” is hard for me, and adding this, I can’t get this nuance of Japanese“UMI”.
✓ The difference between “ocean” and “sea” is hard for me, and in addition to this, I can’t get the nuance of Japanese “UMI”.

× My images are “ocean” is vast and waves sound loud and “sea” is an idea more general rather than ocean.
✓ My view on it is that the “ocean” is vast and the waves sound is loud while the “sea” is a widespread idea than ocean.

× By the way, I miss the water sports!
✓ And by the way, I miss the water sports!

I’m honestly confused about the last three sentences, but I corrected accordingly. If you need further explanation or correction just tell me what you meant exactly and I will do my best to help!

A: × I have heard that the rainy season hasn’t gone yet, but I guess the weather department will say an official comment “Summer is coming”.
✓ I’ve heard that the rainy season isn’t gone yet, but I guess the weather department will announce “Summer is coming”.

× My birthday is October and I love autumn, so I am not a big fan of summer events because it’s always too hot for me!
✓ My birthday is in October and I love autumn, so I’m not a big fan of summer events because it’s always too hot for me!

× Today’s daily plan is working at home as well as yesterday.
✓ Today’s daily plan is working at home like yesterday.

You did pretty good but I noticed your using more formal words in English we rarely say “I am “ we say I’m because it’s quicker and sounds more natural so I would say work on shorting your words! :)