I have to turn my computer into my boss and will not have another computer for a week. How do I back up my Lightroom CC data, without losing it? external hard drive or cloud storage?
You'll want to copy all of your images and your catalog to an external hard drive. Personally, I feel that the EHD is a better choice. You will also want to uninstall Lightroom CC and any other Adobe programs from that computer. When you get another computer you can then reinstall Lightroom and put your catalog back in the same folder it was before as well as putting your images in the same folder structure and if possible the same location (same hard drive name) that they are in now. Then you should be good to go.
I find this article useful as a reference for all the different things that need to be backed up and moved if you're migrating to a new computer.