YOU SAID:

I'm getting mad 'cause I'm so tired and I can't sleep

INTO JAPANESE

疲れて眠れないからイライラしてくる

BACK INTO ENGLISH

I get irritated because I'm tired and can't sleep.

INTO JAPANESE

疲れていて眠れないのでイライラしてしまいます。

BACK INTO ENGLISH

I get irritated because I'm tired and can't sleep.