YOU SAID:

I'm a disappointment to everyone I know

INTO JAPANESE

私は失望私は知っているすべての人に

BACK INTO ENGLISH

I know I disappointed all those who have

INTO JAPANESE

私は知っているすべての人を失望させた

BACK INTO ENGLISH

I let everyone know

INTO JAPANESE

私は皆に知らせる

BACK INTO ENGLISH

I'll let everyone know

INTO JAPANESE

私は皆に知らせる

BACK INTO ENGLISH

I'll let everyone know