First, you need for your career not to be your identity. You're really going to have a hard time not having anxiety at work if work is your identity, because that makes stuff at work threatening to you - not just to your career, but to you.

Second, if he is at all supportive, talk to your husband. Of all people, he is the one who should most be on your side. If he doesn't know what fight you're fighting (even internally), how can he help you fight it?