Custom taxonomies

Hi!

I’d like to know if you or anyone else found a solution here. I’m not a pro coder (not at all), and I’ve wasted the whole day, from 7am to 10pm looking for a way to just list all the posts from a specific Custom Taxonomy. All the code examples from various blogs, websites including the Codex didn’t work. It either showed nothing or even destroyed the layout of my page. I’m quite desperate by now.

So if anyone knows what exactly I’d have to modify in what way, I would be sooo grateful for the help!

Greets, hope to read your answer soon!