Instead of just being in the anxiety spin, try this exercise:
In the days and weeks leading up to that family visit, really pay attention to the beauty and abundance of this life that you have cultivated for your self.
Open your eyes and open your heart when you are here, now, with your family of choice, and your community of choice. Take in the energy, the support, the love.
Let it cushion your heart.
That way, when you are with family, even though the triggers will happen, the impact will be a lot less strenuous to your nervous system.
Because you will have the energy that you “stored away” to prevent a total crash. This energy will cushion the fall and serve to keep you grounded in the life you have chosen for yourself.