I'm in space
when you've been dying to do something for so long that when it finally happens, you lose your mind and act like you're floating in the void
'I'm in space' when I got to eat pizza at my favorite place after a year of waiting.
'I'm in space' when I passed my math test and did a backflip in the hallway.
'I'm in space' when I got to hang out with my crush and I talked like I was talking to aliens.