I think that everyone has at least one bad habit, I'm not different, I have some bad habits that are: ¶
1 - Using the cellphone in the morning ¶
2 - Going to bed late at night

I think that everyone has at least one bad habit, I'm (not/no) different, I have some bad habits that are: ¶
¶
1 -. Using cellphone in the morning ¶
2 -. Going to bed late at night

It's more natural to use the set phrase "no different" here. However, you can't replace "not" with "no" in 99% of places, it's just this set phrase that uses it.

"late night" is a noun like phrase that refers to the time period specifically. When you're using it as a modifier after another action, you'd use "late at night".

My bBad hHabits

Important words in titles have capital letters.

I think that everyone has at least one bad habit,. I'm not different,; I have some bad habits thatwhich are: ¶
1 - Using a cellphone in the morning .¶
2 - Going to bed late night.

Need 'a' before cellphone. You don't need to the 'night', or you could say 'late at night'.

I think that everyone has at least one bad habit,. I'm not different, I have some bad habits thatwhich are: ¶
1 - Using my cellphone in the morning ¶
2 - Going to bed late at night