YOU SAID:

I don't need friends. They disappoint me.

INTO JAPANESE

私は友達がいない。彼らは私を失望させる。

BACK INTO ENGLISH

I have no friends. They make me disappoint.

INTO JAPANESE

私には友達がいない。彼らは私を失望させる。

BACK INTO ENGLISH

I have no friends. They make me disappoint.