My ipod won't show any wifi connections.

I've tried resetting the wifi settings and everything. Sometimes it will work and then it will disappear again. It's not showing up at all, and the wifi option is on so it's not that. It's really upsetting because I paid 400 dollars and I haven't even had it a year yet. I even have a case on it at all times and it still cracked when it fell from my bag not even a few inches from the ground, but it can't be that that's the problem because it has worked fine this whole time. What do I do? It even took me forever to plug it into my computer and get iTunes to recognize it. It was still charging but iTunes just wouldn't recognize it.