If you need to hide away for a while longer then I'd do it. As Dee said, we are all different. I think you do what you need to in the early days. There is plenty of time to push yourself to go out later.
I agree with Cappy, it would be a good idea to see a GP about your anxiety. Anxiety is such a common theme here on SR. Some people get through but others (including myself) are on medication.
Posting here is a good idea, maybe just make that the thing you do for the moment, the great outdoors can wait.