Waiting until the new year is a really good idea. Christmas is the absolute worst time to be trying to lose weight. I know it's hard and you've probably been told this a million times but weight is not the most important thing in the world, even though magazines and weight loss companies want you to believe it is. Just try and forget about it for a couple of weeks, and look after yourself as best you can. It does sound like you're a bit depressed so it's not a good time to stress yourself out even more. Don't panic about your thyroid, I have 2 friends who have thyroid problems and it's no big deal, they just take a tablet every morning to replace thyroid hormones. One of my friends in particular was feeling really bad, tired and depressed, before she started the medication, but after a couple of months she said she felt so much better and couldn't believe the difference. I ordered a program from Pin Up Bodies today, but I probably won't start it until January so it'll be my new year's resolution. It's good to know it will be there for me after Christmas and everything so when I need it I'll be off and running, hopefully. I'll let you know how it goes - maybe we can be doing it at the same time?
Be good to yourself.