Teacher, I forgot the characters I learned yesterday.

It's okay to forget. That's completely normal.

But I can't remember them. What should I do?

You can review them more often. That way, you'll remember them longer.

How many times should I review them?

Just look at them every day and review them several times.

Teacher, do you forget things too?

Of course! I forget things quite often as well.

Really? I thought teachers never forgot things.

Teachers are human too. Forgetting is perfectly normal.

Then I'll start reviewing every day from tomorrow.

Good. Take it step by step, and you'll definitely remember them.