Surrender to the anxiety feeling. Feel it and it will get tired of bothering you. Recovery is about trust. Thoughts do not make reality and feelings aren't facts. Admitting powerlessness over OCD is the1st Step.
Obsessions live in the future and the past.
Validation and affirmation are needed and important. What works one time may not the next. You may have to alternate interventions. Find a neutral zone, or safe place you can recenter in and use it. Remember, OCD is the anxiety part of the pie and has nothing to do with real illness or real death or real disasters.