Exercise is great for when you get edgy. Putting together puzzles is great-- occupies fingers, and I find it totally soothing, in a lot of ways, order out of chaos? Video games, TV etc., sure. Cooking nice meals for yourself? A drive? Soduku/word games/crosswords/etc. Beat everyone in the known universe at Words with Friends (too late, already done

) just things to keep you occupied. And, my personal favorite, go buy art supplies ESPECIALLY clay. You may or may not make something you feel is worth having, but you will have a lot of soothing fun with your hands.
Crunchy vegetables? Call old friends? Visit a pal who doesn't vape? Build a model airplane/truck/car whatever? Start learning an instrument, or start learning to sing?
I find fidget spinners pretty worthless, honestly. I could go on, but I assume you get the drift. I found yelling at the top of my lungs sometimes pretty helpful honestly.... But, that's me. Hot bath/shower. Cold bath/shower (I promise you THAT will change your mood, it's a guarantee, but it's not pleasant. Or, you could suspend your face in icewater while holding your breath a few seconds, a couple of times.. It activates the mammalian diving reflex, which we have as mammals-- it lowers heartrate blood pressure, etc., whales do it to stay underwater a long time. It sounds HORRENDOUS, but nothing chills me out that quickly (though I do sometimes have to redo my mascara afterwards).
Try feeling what you feel then changing what you feel. Alternate. Write why you are quitting and read it. Write in a diary.
Okay, Imma gonna stop, but Good Luck!
Anna