YOU SAID:

my dad left me when i was at a young age and it made me sad

INTO JAPANESE

幼い頃に父が私を置き去りにして悲しくなりました

BACK INTO ENGLISH

When I was little, my dad left me behind and made me sad

INTO JAPANESE

私が小さい頃、父は私を置き去りにして、私を悲しませました

BACK INTO ENGLISH

When I was little, my dad left me behind and made me sad