Effective anxiety therapy is hard to come by.
The first approach is usually to attend your GP who will prescribe medication. This works for some people, doesn't work for others, and always comes at a great cost and with a long list of potential side effects.
Beyond that, counselling or psychotherapy is often recommended and can indeed help to stabilize you and help you make life style changes that can help curb anxiety. Having a stable relationship with a counsellor can also contribute to feeling somewhat better.
Ultimately, however, the physical symptoms of anxiety often persist, even though there may be some positive change.
At that stage, many sufferers reach for methods like meditation and yoga which are certainly great for self care but in relation to the often disturbing symptoms of anxiety and panic attacks can do little beyond helping you to manage them when they occur.