Christie, welcome. You are in for a battle, there's no question, but take things one day at a time. You can do this, you can get through it, and we're all here to help; ask questions, vent, whatever you need to do.
Know that the journey you're about to embark on is one that many here have travelled, and very few traveled this road without the same fears as you have. Some fears will prove themselves true, and many others will not. Take what comes in manageable pieces, and you'll do fine
Wayne