Mental Health Counselling Market Size, Share & Industry Analysis, By Service Type (Individual Counseling, Couples & Marriage Counseling, Family Counseling, and Group Counseling), By Delivery Mode (In-person and Remote Counseling), By Application (Depression & Depressive Disorders, OCD & Trauma-related Conditions, Substance Use & Addictive Behaviors, and Family & Parenting Issues), By Age Group (Children & Adolescents, Adults, and Older Adults), By Service Provider (Private Practitioners, Community Health Centers, Educational Institutions, and Others), and Regional Forecast, 2026-2034