Crisis Text Line - Text HOME to 741741 and a crisis worker will respond. Their website also has extra resources.
Suicide Prevention Lifeline - You can chat online or call 1-800-273-8255. Their website also has extra resources.
Crisis Hotline - 832.416.1199 (call) | 281.201.4430 (text)
Mental Health Resources (amazing list of resources that cover all sorts of topics. Check it out!)
TeensHealth (there are tons of different topics on this website)
National Alliance on Mental Illness (includes some great information about how to help a friend, too!)
The Trevor Project (excellent LGBTQ+ resource--also includes suicide prevention information)