Anxiety is an often and normal healthy emotion. However, if the person later has a regular feel of anxiety, it becomes a medical disorder.
Anxiety disorder can lead to fear, apprehension, worry, and nervousness. To help calm anxiety, you have to first accept that anxiety is not your fault. Try to reduce the intake of caffeine, alcohol, or any hard substance you find solitude in.
Try to get enough sleep; it will help in calming you down. Try having mindful meditations daily, understand your subconscious power, and know that your mind is open to take opinions and suggestions because you are in charge of it.
Exercise also plays an important role, try to exercise daily. Discover great things about yourself that make you feel good, accept and acknowledge the fact that there are great things about you. Finally, learn to love yourself, stop thinking negative things about yourself, take care of yourself, give love, and you will defiantly get love.