Helpful Resources
One of the best resources I have found and they are all free, is from Simon Fraser University. You can download books on depression, tools for anxiety and other problems. The link is
https://psychhealthandsafety.org/tools-resources/
sfu.ca/carmha/publications/antidepressant-skills-workbook.html

Christian links
There is another telephone app which is a Jesuit link from Loyola called 3 minute retreat. This is of tremendous value

Addictions
Please feel free to download a workbook on addictions written by me