MyFirst Day I Back To School
Today, I woke up late . I'am forgot if today I will go to school after a long holiday. I forgot that I had to go back to school today after a long holiday. or vacation in the US if you mean summer or winter vacation which can last for months, otherwise we only say holiday for Thanksgiving, Christmas, etc.
How ambrased embarassed I am. me, I'm wrong weare wearing the wrong uniform. My friends just laughed to at me so I'm borrowing my friend's jacket. Every teacher who meet sees me always asks me "How poor sad you're. Did you forgot what day today is?"
By the way, I corrected this for American English. Sorry to hear you had such a rough day. :(