I am almost ready to launch my new online qigong course

This time it is somewhat different. I am offering and advertising a transformational journey of 5 weeks where I include qigong, meditation, cleansing diet guidance and telegram group support.
I don't know how to price it.
I am thinking to leave it to donations, but then I need money. I can hope I will receive enough through the donations.
Or I can set a price. I am running low on confidence that I have enough of authority in my domain to ask for much.
It is a beginning for me.

What do you think?