Galaxy Nexus Help, won't move past Google startup screen

[Lightring3]

And I need help. It's rooted, and I have TWRP 2.1.
I tried to update my CM10 4.1 to CM10 4.2. I assume I didn't have the right google apps APK, so I tried to update that as well on my second time around.
Well, I did that and EVERYTHING was "unfortunately, _____ is not responding" and I mean EVERYTHING. I couldn't unlock my phone or anything with these messages bombarding me.
So I went to take a step back and restore from the backup I had made, but the backup isn't there in the restore section.
I go to the file manager and the file is there, but in the restore menu--it isn't.

I factory reset my phone to just start from scratch, but now it doesn't get past the bootup Google with the unlock symbol on the bottom. Doesn't do anything. Try to go to the bootup by holding the volume button and power together and it just says "Start" where it usually is, above the android guy, and under him it says "Downloading...do not turn off target!!" But its been like this for almost 20 minutes.

I can't think of anything that I could do to fix this.

What are my options?

A million thanks in advance.

 

[Biggnaa20]

I've never had this exact problem happen to me, but when I've been stuck on a screen, I usually reinstall the rom by going into recovery and flashing it new.

That usually fixes the problems. If it doesn't, try to redownload the rom to make sure you got a good download, then reflash it.

nb