The single most powerful thing you can do to reduce anxiety is to change your perspective and train your brain to start assessing situations differently. When you can look at problems, worries or fears in a different way, you can reduce feelings of anxiety. Different thoughts lead to different feelings.
But if you could do that on your own, you probably would have done it already. Changing those habits of thinking (in this case, anxiety thinking) is hard.
This is where Cognitive Behavioral Therapy (CBT) comes in. This is one of the main types of anxiety therapy that I practice. It has been shown in dozens of scientific studies to be probably the most effective treatment for many forms of anxiety.
60-80% of people with an anxiety problem who complete a course of CBT will experience a significant reduction in their anxiety. This is often better than (or at least equal to) the effectiveness of medication. And CBT has longer-lasting results than medication alone because it gets to the root cause of the problem.