Open a window or go outside and take a few breaths of fresh air.
I bake desserts that I usually give away while listening to positive speakers on YouTube also rearrange my furniture around my home makes me feel calm like I have control
Watching Thomas Sanders on YouTube honestly just makes me smile and it's relaxing.
Journal or go for a run.
Read. I immerse myself in another world. For the escape and hopefully because I'll be able to think clearer after a break.
KEEP CALM!😲
Usually, I spend time with family, especially with my brother. But if I'm alone then:
JOGGINGGGGGGGGGGGG! 
That's my soul mate right there! 
Cooking
Unplug from electronics and social media, exercise, listen to music
Go outside, listen to music, do art, do yoga, do meditation, journal, dance, anything that makes you feel good!!