Substance Use/Addiction:

https://www.psychologytoday.com/us/basics/harm-reduction

https://www.verywellmind.com/what-is-motivational-interviewing-22378

Anxiety/Worry:

https://www.psychologytoday.com/us/blog/anxiety-files/200805/what-is-productive-worry

https://www.psychologytoday.com/us/blog/anxiety-files/201802/ten-steps-freeing-yourself-your-worry

https://www.psychologytoday.com/us/conditions/generalized-anxiety-disorder

Depression:

https://www.psychologytoday.com/us/blog/anxiety-files/202104/how-build-motivation-overcome-depression

https://www.psychologytoday.com/us/blog/anxiety-files/202103/how-low-self-esteem-can-make-depression-worse