Per Iamexpat.nl:
Emergency mental health services
If you or someone you know is experiencing a mental health crisis, such as suicidal thoughts or tendencies, acute depression, delusions or panic attacks, then you should contact a GP immediately. They can help you or your loved one by contacting the 24/7 crisis intervention team.
113 Suicide Prevention
You can anonymously contact 113 Suicide Prevention by calling 113 (normal calling costs) or 0800 0113 (free of charge). You can also use the "Chat" button on their website. They have a strong international orientation and many of their trained volunteers can help you in English, 24 hours a day, 7 days a week.
Support lines
If you need emotional support or just need someone to talk to, there are several helplines and resources that you can use anonymously in the Netherlands:
Emotional support helpline (Stichting Korrelatie): 116 123
The Listening Line (De Luisterlijn): 088 076 7000
MIND Korrelatie: 900 1450 or WhatsApp: 061 386 3803
Social services: 070 205 2222
Domestic abuse hotline (Veilig Thuis): 0800 2000
If you find yourself in a life-threatening situation, contact the standard emergency hotline 112 for urgent assistance.