The mouth to mouth part is no longer medically advised, in favor of effective chest compressions.

You now only have to think about how you’re going to perform effective chest compressions on an animal whose anatomy you don’t understand at all (or even if you’re supposed to do them to begin with), and, assuming you should do them, keep doing them until a veterinarian qualified to resuscitate a giraffe can be flown in from thousands of miles away.

Good news! You got this. Have fun!