Today, I made a sentences with my friend.

Don't need the 'a'.

My friend's name is Yuho.

need the s to show possession.

But I was not ideaman, so I felt sorry for YuhoIt was Yuho who had all the ideas though.

ideaman isn't a real word

When class finished I apologized forto Yuho.

for Yuho means you apologised for how Yuho behaved, apologising TO Yuho is apologising for how YOU behave.

Angela heard my words and she said “ Don’t say sorry. You did your best, right?”. I said “Yes."

You should combine the 2 sentences into 1.

You did your best, right?” I said “Yes.”

As above.

Today, I made a sentences with my friend.

Not sure what you mean here

My friend's name is Yuho.

But I was not an ideal man, so I felt sorry for Yuho.

This is a bit unclear too

When class finished I apologized forto Yuho.

Angela overheard my word and she said “ "Don’t say sorry.

You did your best, right?” I saireplied “Yes.”