The education watchdog ESTYN has found 89 per cent of young people do not know how to get help with self-esteem issues.
They are now calling for local authorities and the Welsh Government to improve youth services, providing "safe spaces" for those in need. The ESTYN report looked at what provisions were available to young people aged 11 to 25, and how accessible these were.
The majority of young people surveyed for the report did not know where to go if they had issues with debt, relationships, substance misuse, or employability.
For problems around substance and alcohol misuse, 70 per cent of young people were unaware where to find help. A further 82 per cent surveyed did not know where to find help about relationships.
Based on the report, the education watchdog has made a number of suggestions to improve youth services. Local authorities have been asked to "consult meaningfully with young people" in order to provide "safe spaces" for support.
Recommendations have also been made to the Welsh Government, including providing a "policy basis" for supporting youth work. ESTYN have also asked that local authorities are held to account for the "quality, range and types" or services provided to young people.