I must say that I find it difficult exposing, or more precisely exposing and justifying, personal things like my religious practice.
No one asked you to come here and talk about your religious practice.
This site is dedicated to fighting cultural appropriation. You come here as a non-NDN, claiming a right to practice NDN ceremonies.
You said you're German, but you ignore the ways of your own ancestors and try to mimic those of another people. This dishonors your ancestors. Or, at the least, neglects them.
You will find this is not a place that buys the newage idea that all ceremonies are "universal". We are not here to support Europeans ripping off NDN ceremonies, we are here to fight that abuse and expose those who do such violations to Native traditions.
And if you can't be respectful, you'll be shown the door.