How can i take up psychology classes even though i am 12

Go to local libraries and look for books on psychology

Explanation:

In honesty, I do not know if you can at your age. But the advantages you have are still great. You can look up articles and psychology sites to see how it works. It's all in your own interest.

I do apologize if this is not what you were looking for but best of luck!

because health skills are tools and strategies and also practical skills are also something you need to learn (like tools and strategies) and put it in reality.