The phrase "I got so bored" is correct and commonly used in written English.
Example: "I was looking forward to the movie, but halfway through, I got so bored that I fell asleep."
"Growing up, I got so bored with all these sad stories, films about couples fighting in their kitchen for two hours.
Personally, I got so bored with the situation that I took a break and had some fun with the primary graphs, just to kill time.
What Yelp Said: I got so bored here that I found myself sitting at the foot of the spiral staircase playing "guess which colour underwear that chick has on" and watching girls walk up the stairs.
"At seventeen, I got so bored over the Christmas holidays," Leaverton explains, "that I stole my mom's classical guitar from the '70s with one string missing and proceeded to teach myself how to play the guitar and almost instantly began writing songs.
But then I got so bored I thought I might as well have a go at writing a novel.
Actually, I got so bored with it that I stopped playing, which is why this is just a 'first look.' I'll be playing a bit more over the next week and will have a review shortly.
"I get so bored on the train that I am about to howl with tedium after five minutes on it," Gustave Flaubert complained in 1864.
But I get so bored by all the tedious bits and pieces, the endless fiddling around and waiting for your go, not to mention the so-called luck that never seems to come my way.
I knew they got so bored on these sets, so I hoped it might feel like a revelation to have someone around who made them feel important.
Occasionally, Redford got so bored by his own beauty that he would go off and direct something.
