Yeaaaah, some words are being slurred a bit more than I'd usually expect; it's part of the "Young American Girl" accent.
She's speaking very informally, so the asterisk in the first line below is where she omitted a pronoun.

Hi, guys! Please excuse the hair, because it's not looking too great,*gettin' ready.
I'm in the middle of getting ready. Anyways, so, today's a story time video. I wanted to
share my catfish story with you. It's pretty weird. Um- and it just happened like a couple
weeks ago, so, I thought I would share my experience with being catfished, cause I'm sure much
of the internet has been catfished before in this day and age so, yeah, let me get into the story.

Lots of um's and uh's.

"a" and "the" are going to sound incredibly similar after a word ending in consonants. Not a rule or anything, but people will be more willing to ignore the "th" consonant if they've already gone through two or three consonants.

(To be)/(to get) catfished - (Social media and dating websites) When a person pretends to be an attractive member of the opposite sex. Usually leads to a guy becoming attached or invested in a girl who is actually just a guy pretending to be a girl... For... "fun"...