Фразы из учебников VS Разговорная речь носителей

📕Do you need help?
🗣Wanna hand with that?
Do you want a hand with doing grocery shopping?

📕My mistake
🗣My bad
You didn’t tell me you were going to come today!
- My bad!

📕I need to think about it
🗣I need to sleep on it

📕Are you joking? / You must be joking!
🗣You’re kidding me! / You must be kidding me!

📕Yes!
🗣Indeed
It sounds reasonable.
— It does, indeed.

📕I agree
🗣Same here