Go ahead. Install some wacky cool looking theme into your IDE that you had downloaded from a 4chan thread. Get iterm2, alacrity, p10k, whatever. Get your dotfiles from your favorite twitter web developers GitHub. Pay $20/mo for cursor.
The guy who just gets a computer and writes code is better than you. He used the default terminal. Didn't even bother installing an IDE. Rarely uses Claude, or chatgpt, or whatever is better now. No AI knows his codebases better than he does. You'll never be as good as him. That's okay though.