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Developing a positive outlook is actually the development of a skill. As with any skill, it takes time to master, and it requires dedicated practice and gentle reminders about not falling back into negative thinking. If you change your physical or bodily habits, your mind will follow suit.  In order to feel happier in general, approach your physicality in a positive way.  Practice good posture, standing up straight and keeping your shoulders down and back.  A slump will make you feel more negative.  Smile more often.  Not only will others smile back at you, but the act of smiling may convince your body that it is happier. Being more aware of your actions and your life will make you feel happier.  When you simply go through the motions of your life like a robot, you will likely forget to find the joy in everyday things.  By being mindful about your surroundings, your choices, and your daily activities, you can gain greater control of your life and your happiness.  Consider taking up meditation as a way to center yourself and learn excellent focus. By meditating every day for 10 to 20 minutes at a time that's convenient for you, you can increase your awareness of self and the present, helping you to corral the stinking thinking with greater consciousness.  Try taking a yoga class. Yoga can also help you become more aware of the world as you get in touch with your breathing.  Even just stopping to take deep breaths and rest your mind for a few moments can make you feel happier. If you haven't had a chance to explore your creative side, now's the time. Taking the time to be artistic and to work with your hands or explore your most original thoughts can do wonders for your power to think outside the box and to therefore think positively. Even if you don't think you're naturally inclined toward creativity, there are a number of ways you can express yourself to become more positive.  Take a class to learn about something you've never done before: consider pottery, painting, mixed-media collage, poetry, or wood working.  Try learning a new craft such as knitting, crocheting, sewing, or needlepoint.  Craft stores and online tutorials are great resources for beginners who do not want to take a class. Doodle or draw in a sketchbook every day.  Try revisiting older drawings and turning them into something new. Be a creative writer. Try penning a poem, short story, or even try your hand at a novel.  You can even perform your poetry at an open mic night. Try role-playing, dressing as your favorite TV or comic book character, or trying out for a part at a community theatre. We are often influenced by the people around us.  If you find that people around you tend to be negative, look to surround yourself with more positive people.  This will feed your own positivity.  If you have a close family member or a significant other who is constantly negative, encourage her to go on a journey towards positivity with you.  Avoid people who sap your energy and motivation. If you can't avoid them, or don't want to, learn how not to let them get you down and keep your connection with them brief.  Avoid dating anyone with a negative outlook. If you're already prone to negative thinking, you'll be falling into a trap. If you do wind up in a relationship with someone who struggles to think positively, though, seeking counseling together might be your best option. Whatever your goal may be, you should keep yourself busy working on it and believe in the cause you've set for yourself. Once you reach the first goal, you will be inspired to continue with the remaining goals, as well as adding new ones to your life. With each goal you achieve, no matter how small, you will gain confidence and your self-esteem will increase, feeding more positivity in your life. Working towards achieving your goals—even if you’re just taking small steps—can make you feel happier. People who allow themselves regular fun in their lives tend to be happier and more positive because it isn't all drudgery and never-ending monotony. Fun breaks up the hard work and challenges. Remember that fun does not look the same for everyone, so you may need to spend time finding an activity that is fun for you. Always make time for laughter. Hang out with friends who make you laugh, go to a comedy club, or watch a funny movie. It'll be hard to think negatively when your funny bone is being tickled.
Give yourself time to change. Be physically positive. Practice mindfulness. Explore your creative side. Surround yourself with positive people. Set meaningful goals. Don't forget to have fun.