there is no widely recognized or established organization or institute called the "Institute of Holistic Mental Health" that holds international recognition or acceptance. It's possible that new institutions or organizations may have emerged , but I would not have information on them.
If there is such an institute that has been established since then, it's essential to verify its legitimacy, reputation, and acceptance within the mental health community and relevant governing bodies. To assess an organization's credibility, you can look for accreditation, affiliations with reputable institutions or associations, reviews from experts in the field, and official recognition from relevant government or regulatory bodies.
Always exercise caution and perform thorough research before trusting any organization for your mental health needs or seeking professional guidance. Consulting with mental health professionals, doctors, or reputable institutions can also provide valuable insights and guidance in this regard.