Music helps a lot, if you choose the right music you can influence your feelings. Music can make you happy, sad, mad, jumpy, excited, etc.
2. Writing or reading
Writing is a very good way to express yourself and splatter your brain on paper. You can possibly write about what you're feeling at the moment or create your own characters and your own word. Reading is very intellectual way to spend your time and calm yourself. Sometimes reading can highly work for calming yourself and if a book doesn't change your life or way of thinking in the most tiny bit of way, it's not doing its job.
3. Complimenting yourself
You're a beautiful person, you should compliment yourself on something you like about yourself everyday.
4. Don't let what people say get in your way
What someone says does not define you. You define yourself. Unless you say some crappy ass shit about yourself, then listen to the people who love and care about yourself cause they're just saying the truth, you listen to the people who love you until you learn to love yourself.
5. Have "You Time"
If you do not give you time for at LEAST five minutes a day, you are just going to continuously stress. Don't let that happen, give yourself some time of the day to appreciate yourself and relax.
6. Take a bath or shower
Release all those tense muscle from stress, do yourself a favor.
7. Talk to someone you love talking to
Whether it's yourself, your mom/dad, auntie, cousin, friend, pet, whatever. Socialize with someone, maybe all you need is love and affection or just someone to listen.
This might help relieve stress, like listening to music and writing/reading, drawing/painting/doodling is an amazing and creative way to relieve stress and splatter your feelings and mind into a masterpiece everyone or just yourself can seem.
9. Take care of yourself
Have a good snack, make sure you eat breakfast, lunch, and dinner. And have snack occasionally you can be loss of energy. Also, make sure to drink water. You, can't just walk around dehydrated, you'll feel terrible.
10. Take naps or make sure you get a good night sleep
Getting enough sleep is good for you. Helps relieve stress, and is a mood booster.