Gayge clap
Is it a bad sign that I've been playing for a year and a half and only 300 ELO?
No because you're also reading chat at the same time and it's hard enough to focus on one, but you do both.
You are like everybody else; normal. See me. a perennial 100. You're better than I will ever be.
P.S. I named myself [BLUNDER]masterB (B standing for BLUDNER again.) for a reason. Every move I make usually gets ??, and I am proud of it.

GothamChess on YouTube has videos that are “how to get to 1,000 elo, 1500 elo, etc. and I’ve got better by watching GMs play each other

I would say that you need to pay attention more and maybe do some excercises if you want to get better, so far you are just talking to chat and kinda randomly moving pieces, so you are getting better only at a very slow rate ;-) btw nice way is to get somebody better on discord so he/she can teach you during live game, that way you are more focused on chess and learn something

I say Gothamchess because he goes over his subscribers games all the way from people with 100 elo to going over 2000+ elo games, and he explains flaws and what moves that can play to improve, they say it takes 10k hours to master a skill and there’s 8,765 hours in 1 year lol

Maybe. Time spent playing doesn't necessarily equate to higher elo.
What's important is the time spent learning from your mistakes, learning new things, and trying to get better.

It's a good sign that you are playing chess. Rating is not that important in my opinion, especially online rating. When you can enjoy the beauty of the game and have fun, everything is fine! 😊
What does this say about me?