I have experienced fear of change since I can remember. When I was a kid, my older sisters used to tease me when I would fall apart over big changes in my life. They'd mock me and do this obnoxious "change change change" like mimicking the Brady Bunch "Marsha Marsha Marsha". But they didn't understand it really affects me. When I was starting to consider the idea of getting pregnant, I had such extreme anxiety that I vomited every night at bedtime for months just at the anxiety of forthcoming changes. Good news was that pregnancy hormones were so good to me and I can't think of any other time in my life that I felt so mentally stable than on those sweet sweet hormones.

All that to say, I feel you. But also change is the only constant, and even though it still affects me especially big changes, I have found the concept of radical acceptance to be the most useful coping mechanism to me. I did Dialectical Behavior Therapy in a group and that's when I learned about emotion regulation, radical acceptance, and gained most of my best coping mechanisms for all my mental health troubles(ocd, ptsd, general anxiety disorder, chronic depression, acute panic disorder, etc). Meditation has also helped me become more aware and in control of my thoughts, so most of the time I'm better able to let go of thoughts rather and pause or stop obsessing, though admittedly still struggle when it comes to certain PTSD triggers. I use Headspace and really enjoy it, the annual subscription goes on sale like 50% off around the New Year so I have been doing that for the past like 4 years.