Do I need a shop?

Some chick hit my car from the front. It ripped the whole front bumper off. I took it to get looked at, and the insurance company said I had to get the front clip "resquared". I could see where the impact had moved things over, but I'm curious hoew hard is it to fix this by myself? I am looking for a CW-1 bumper, but until it gets here. I'm doing my research to find out some info on body work, and exactly how hard it would be to fix the problem. It looks like it's only off a couple of mm. Any advice would be greatly appreciated, especially from any experienced body guys out there.

we need pics to be able to help you more.