You need to have it X-rayed and set.
If it were a less used and less important finger or a toe, it might not be such a big deal. This is a big deal because you use that finger all the time. If you don’t get it seen about, it might hurt to play Xbox forever and then where will you be?
We’re urging you to go to the doctor because it is important and it will cost you nothing but time. ERs are not going to ignore critical cases just because you’re there, you’re not taking anything away from anyone by being there to get treated. Except yourself and perhaps the proper function of your finger. The doctor can splint your finger properly and, more importantly, make sure its set right so that it heals well.
I broke my toe a little over a year ago. There are certain shoes that I haven’t been able to wear until recently because of how it healed. I didn’t go to the doctor and splinted it myself, but it was something that was pretty much ok because of the way it cracked. Bones are no joke and need to be seen about before they start to heal. If I were you and had something as important as my index finger broken, I’d go get it seen about ASAP. But the difference between you and me is that I’d pay 90 bucks (at least) just for the X-ray and a buttload of other money for anything that was done for me.
This is your finger, which is essential, that’s broken. Its just time that its costing you. Get a buddy or a book or a laptop with some DVDs (whatever you need to entertain yourself) and go. Or wait until the middle of the night and go and hope that they’re slow. But go.