Help stuck on boot screen

[aklbeach]

So I think I'm stuck in a soft brick. I rooted my phone the other day and I was playing with rom toolbox and changed the gps icon and I started getting all kinds of force close system processes. Guess the phone didn't like it. I also had changed the start up screen to a custom one. Well after I kept getting the force close I couldn't change it back to the way it was, now the phone won't boot. I can get the phone to come in fast boot mode, but I'm not sure what to do after. Any help would be appreciated.