I JUST PLAYED LIKE THE BEST GAME OF MY LIFE

https://www.chess.com/game/live/88055991689

Okay so like basically I just did the best game of my life I started by just doing basic natural development moves and played it like I would play in the closed catalan and then I was going to threaten checkmating  but there was the queen there so I was just threatening taking that and I kept on attacking the queen up until move 12 I just wanted to trade and get the chance to move my rook if my opponent didnt take for some reason I don't know why that was a brilliant if someone can explain please do but then I forked the king and rook and got a few extra checks in and the fork was still there then I felt like there would be a checkmate and it was a bit tricky because nothing was protecting the e2 square but since they didn't take my knight on e5 I was able to make a check and if the queen wasnt forcing the bishop to go to e2 I couldve just had them trade with my knight that went on d3 and then go like qd2 then qf2# or the other way around but that didnt happen so I instead just checked instead and then had the same basic idea and im just amazed but I don't understand the brilliant move where I moved my knight can someone please explain? And like this is my first time getting a brilliant move I think and I got 4 of them and it is crazy im super happy right now

This is why it is important to get a good nights sleep or youll go insane