<human>: Condense the text into a few key points

This happened the last Halloween.
I am not the kind of person that is into going to parties but I was feeling like the time has come and I needed to have the greatest Halloween. But I didn't have any costume for the event, so I went to the mall. Then I saw this Slenderman costume which looks incredible in the picture and also had 30% discount (It was like 90 dollars without it, wtf Mexico). It was perfect, I put it on and saw that it was fine.

Then the day of the party arrived and it was extremely cold, so my friend (yeah, that friend the men have) was calm down and feeling short. So I just put my costume on and get into the party.
It was horrible, no one knew what was Slenderman and then a lot of people thought that my costume was something like a stripper. Then a girl that I liked a lot was laughing like there was no tomorrow. I begun getting nervous and so the cold went away and my little friend decided it was time to be the protagonist. Holy shit, it was like if I didn't have anything put on, I was dying from all the glances I was getting. And to finished my fuck up then my friends from my old school arrived, thankfully someone gave me something to hide my dick and my shame.
<bot>: Using a slenderman costume in a party no one knew what he was, being told the costume is for stripper and showed my dick to all my friends.