I pressed all the buttons when it reached my floor on the crowded elevator
Why do you want to see the world burn? Did you know that that was going to make people mad?
Yes, but I did it because I was so excited about my new job.
It's understandable to be glad about a new job. That's not an excuse to cause trouble for everyone around you. I hope you apologized.
I just said sorry I was so excited.
That is still not very nice to do. Now all those people are going to be late because they have to wait for the elevator to stop at each and every floor. You should have just exited the elevator.