Worth saying at the top, on a somatic directory: for a lot of anxiety, CBT and exposure are better first choices, and they work fast. If you have a specific phobia, or panic with a clear trigger, or health anxiety, targeted structured therapy is very good and often short.
What CBT does that this does not
It goes directly at the avoidance, which is the engine. Anxiety survives on the things you stop doing, and the treatment that systematically gives them back is the treatment that resolves it. Somatic work does not have an equivalent mechanism, and a practitioner who says otherwise is selling.
It is also structured, measurable and finite, which matters when you are already exhausted.
Where somatic work earns its place
When the anxiety has no content. Plenty of people are not anxious about anything in particular — they wake up with the physiology already running and then their mind goes shopping for a reason. Challenging the thought does not help much when the thought was an afterthought.
When it is chronic rather than episodic. A body that has been braced for fifteen years is a different problem from a person having panic attacks, and the second responds to protocols better than the first.
And when CBT worked partially. A very common shape: someone does CBT, understands the loop completely, has excellent tools, uses them correctly, and is still tense every day. That is not a failure of CBT. It is CBT having done its part.
What it actually offers
A larger tolerance for physical activation, which for an anxious person is most of what the problem is made of. Anxiety is unbearable partly because the sensations themselves are read as threat. Working directly on the sensation-threat link, slowly, is the thing this method is built for.
Also, and this is undersold: the ability to notice you are going up before you are already there. That skill shortens episodes more reliably than any single technique.
A sensible sequence
If you have not tried structured therapy for anxiety, try it. If you have, and it worked but not completely, somatic work is a good complement. If your anxiety is the diffuse, physical, always-on kind with no specific object, going at it from the body first is reasonable and you are not skipping a step.
And if it turns out to be a thyroid problem, sleep apnoea, or too much caffeine — all of which produce excellent impressions of anxiety — no therapy of any kind is going to fix it. Get the workup first.