Maybe try self soothing - like things that make you feel calmer, supported, better, and soothed. It could be a whole list of things like taking a warm shower or bath, going for a walk, practicing yoga, reading something uplifting, listen to music you find soothing under a blanket, drinking tea, looking at Pinterest. What do you think might make you feel better and soothed, even just a little.
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Consider also looking up "distraction DBT" and "improving the moment DBT."