In game 1 21.Qxd4 is a blunder
Why you should castle

I think the title ought to be "Why you shouldn't hang rooks."
had he castled i would have no decisive attack

Dang, they've got little eyes.
i'd love it if those pieces were an option in theme settings!
https://www.chess.com/live/game/3849765329
https://www.chess.com/live/game/3849793463
Game 1 when i was up a rook i was able to hunt down his king while keeping my own safe and set up a "queen and helper" mating net. Game 2 I didn't waste much time and was developing my pieces, castling, and not hemming in too many pieces. It's good to castle. And make sure to do it before your king sees danger!