Period anger😈

So i recently got my room to myself since my older sister moved out. Im redecorating and i wanted to build a desk for my new room. I had this nice desk in mind and how i was going to make it. But he bought the supplies without me and now he's building it .....without me and disregarded all my measurements except for the height. He is also building it differently. I want to just step back and let him work but this was my project i wanted to do it and normally i would be perfectly find with this but since im on my period im just reaaalllyy infuriated. I keep hearing him say "eh close enough" and im really concerned😅😭