안녕하세요

I am a late riser.
I ate '비빔밥(bibimbop)' as soon as I woke up.
'비빔밥(bibimbop)' is a very popular food in Korea.
Put in rice and various foodstuffs mix with red pepper paste and enjoy eat.
Many people like it, regardless of sex or age.
Dinner menu was fire(→spicy) tteokbokki.
Tteok bok ki is one of my favorite Korean foods.
This is made of rice cake peices, fish cake, noodles and Korea sweet and spicy sauce.
It is very cheap, that's why it popular to Korea.
I am going to met my friends to study English again today.
I was feeling down. I don't know why I was depressed.
I will expect tomorrow is a better day.

안녕하세요

I am an a late riser.  (this is quite OK to use, but a more common expression for this is "I am not a morning person", neither am I, so I understand. )

I ate '비빔밥(bibimbap)' as soon as I woke up.
'비빔밥(bibimbap)' is very popular in Korea as food.
You put in rice and various foodstuffs mix with red pepper paste and enjoy eating it.
Many people likes it, regardless of sex or age.
Dinner menu was fire(→spicy) tteokbokki. (sounds yummy;)
Tteok bok ki is one of my favorite Korean foods.
This is made of rice cake peices, fish cake, noodles and Korea sweet and spicy sauce.
It is very cheap, because it is popular with Koreans.
I met my friends in order to study English again today.
I felt down, I don't know why I was depressed.
I will expect tomorrow I will be happy.

just some comments.
Try and join short (topic related) sentences together with "and" or "but" to make the flow better.

Example:
I felt down, I don't know why I was depressed, but I expect tomorrow I will be happier.

Good job overall though.
Andrew.