[General] I think I'll turn in.

[Silverobama]

Hi teachers.

I was chatting online with a friend; we both want to improve our spoken English. But it was getting late and I usually went to sleep at that time. So I said to him "It's late. I think I'll turn in".

Is my sentence natural?

 

[GoesStation]

Yes, it's perfect. A common variation with little difference in meaning is It's getting late.

 

[emsr2d2]

Hi teachers.

I was chatting online with a friend; we both want to improve our spoken English. But it was getting late and I usually [STRIKE]went[/STRIKE] go to sleep at that time. So I said to him "It's late. I think I'll turn in".

Is my sentence natural?

See above. In general, we use the present simple for habitual actions.