Here is an awesome, free, online cognitive behavioural program to treat depression.  It is offered by Australian National University.

It is particular good for young adults (or youthfully-minded older adults!).

I have had great success with some of my patients, who report:  It is very educational and it opens your eyes to things you never knew.

Have fun!

https://moodgym.anu.edu.au/welcome/new/splash