Oh, I love kombucha too!!! And it's actually quite easy to make. I've been making kombucha for many years and hat tons and tons of scoby stacking 😂
People are more afraid that something bad will happen because we have been trained that mold and fungi etc. can be toxic. But if everything is done relatively cleanly, nothing can actually go wrong. Observing and trusting your taste and sight... and things will turn out well. Maybe I'll offer a workshop in English one day...
I would like to encourage you to try it 👍🏼