National Alliance on Mental Illness is also known as NAMI! Their focus is on providing "advocacy, education, support and public awareness so that all individuals and families affected by mental illness can build better lives." -NAMI
Nami offers many services such as support groups, a helpline, mental health education, and much more. If you head over to this link:
Here's a small guide/pdf that you can use to learn more about mental health!
https://s3-us-west-2.amazonaws.com/secure.notion-static.com/2835733e-50f8-49f1-9f66-1d6fb2826682/NAMI_2017Handouts_FINAL.pdf
If you'd like to get involved with them, you can become a volunteer or contribute to conversations through them by becoming a member (which comes in two forms, one of which is free and another one is paid). Check it out by clicking on this link to learn more about what you can do to educate yourself on these important aspects of mental health.