You are right in saying that learning brings happiness.

I have always fought my permanent depressed state with the reading of how much book came into my hands.

And when I had access to the internet, the first thing I looked for were online courses or studies.

Discovering wonderful pages like Coursera that allowed me to study basic guitar with berklee college of music.
For free. Wonderful!

And now Steem with all its source of knowledge.
It has really worked for me better than any therapy.
Greetings.