i am SO pissed off at my computer

i was having a fun time coding my profile and i decided to make a tester acc so i didn't mess up the stuff i had already done on my main so i had one tab open of my main and one of my alt because the code i was testing needed some of my friends profile URL and i couldn't find it on my alt but my STUPID computer decided to shift my alt tab to my main while i was editing on what i THOUGHT was my alt  because it auto links the account on different tabs so i ruined EVERYTHING on my main profile and now i have to re-do every single bit of text and code on my main profile KILL MEEEEE