The real test is how proud you feel tomorrow.
If all your tire takes is a little topping up, that's normal for a tire inflated with CO2. You did a good job.
If it's flat again, I wouldn't call it normal, but it's certainly common. You probably pinched the tube under one of the tire beads so you'll get a chance to practice some more.
Uh - next time try using your quick release skewer for an emergency tire lever. You'll always have it with you and it's less apt to damage your new tube than a screwdriver or allen wrench.