Remember that it is your belief and you should stick to it. No amount of trash talking should make you question your belief

There are no secret rituals or magical spells. It is just a way of thinking and perception. Though many Otherkin do believe in magic and explain their current condition as a result of a spell cast on them a long time ago(when they were living their previous life). You must deeply feel that you are not human but some other creature, this feeling should be strong enough to make you feel uncomfortable when someone calls you human.

Being Otherkin does not change anything. You keep living your normal life. Being Otherkin just colors your perception a little. Avoid making claims that you can turn into your kin’s form. This is called “Physical shifts” and it’s frowned upon in the Kin community because it is impossible. Making such claims can get you noted as a troll.

This can also be explained by Timothy Leary’s eight-circuit model of consciousness, in which the first two circuits are animalistic in nature, while the third is human(it tends to categorize and label things), in Otherkin the third circuit is labeled the first two circuit as an animal within them. [1] X Research source