It's really hard your first time, but, it's better if you plan it to get a puppy like a week after and you have dogs to go home to. It's easier if you think of it as doing it for the blind person, not for you. lol, it's just really hard to give them up, but if they go with a blind person you get to go to the graduation and it's really fun! Then you keep in touch with the blind person so you know how they are doing.
If they DON'T make it, they ask you if you want to keep them! (You can't keep them all!)