I was in a good place with my anxiety and had been managing it very well and not had a flair up of symptoms for a long time. Recently I was promoted at work (which I wanted) and since I started the role last week I have been an anxious mess, I feel way out if my depth, I'm sleepless and feel like it's all caving in around me.  My new job is mostly written work from home and feel like I can't do anything. I'm terrified of failure so I tend to stick to my comfort zones of what I know and this role is outside of that and totally new. 
I need some encouragement - I hate anxiety.