Dear Adam:
You left a job that was destroying you- you did the right thing. Now that anxiety is hurting you, you have a new challenge. And there will be more. Try best you can to take one day at a time. When anxious, take one hour at a time. When anxious it is not the time to figure out what to do with your life.
Go to Thailand, take a break from the distress you experienced for a long time: the job and the aftermath of quitting. Take the vacation you need and well deserve. Get lost in the unfamiliar and the unknown awaiting for you there.
Post before or when you are back from Thailand, will you?
anita