I'm not very good ay sensory self-soothing, but I find taking a warm shower helps. So does rigorous exercise.

Another, slightly strange, coping technique I use is to listen to the pre-recorded sound of a hairdryer while meditating.

When I was young, I'd lie on my mom's bed while she blow-dried her hair, so it elicits a strong sense of well-being.

PErhaps you could find a sound that soothes you, and meditate while listening to it.