Call 999 if you feel you are in immediate danger.
For NHS urgent care services, check:
https://www.nhs.uk/nhs-services/mental-health-services/where-to-get-urgent-help-for-mental-health
Call Samaritans on 116 123.
Text "SHOUT" to 85258 to contact the Shout Crisis Text Line, or text "YM" to 85258 if you're under 19.
If you're under 19, you can also call 0800 1111 to talk to Childline. The Childline number will not appear on your phone bill.
If you are having thoughts of suicide or are concerned for a young person (under 35) who might be you can contact Papyrus UK HOPELINE247 for confidential support and practical advice.
Call 0800 068 4141
Text 88247
For refuge from domestic abuse, there are several support options detailed here.
These services will only share your information if they are very worried about you or think you are in immediate danger.