You just have to keep reminding yourself that you're safe. Thing is, that's a lot easier said than done. Don't push yourself in any stressful situations for a while, including unrelated stress. Have something extra that makes you feel safe. Carry pepper spray when you're leaving and coming home. Try working out (helps with anxiety) and do rituals that have made you feel safe in the past.
That's all the advice I have and could or couldn't work for you. You could try some of these out and see how you feel about it.