Sri Matre Namaha !

I have 3 questions:

1. When is the next batch of Beginner's Online Course?
2. What are the rituals for Bala in the Beginner's course? Is there also tarpana and yantra puja?
3. What are the rituals for Chamunda / Durga ?

It's clear about Ganapati (mantra, tarpana and yantra puja), and I take it there will also be given the mantras for Bala and Durga, my only question is whether there are rituals for Bala and Durga also?

Sri Matre Namaha