My brothers want to evict me from the apartment where it is registered. How do...

Article 47 of the Constitution of Ukraine guarantees that no one can arbitrarily evict a citizen from an apartment or be deprived of housing: this requires legal grounds or a court decision.

The fact that you are registered in the apartment does not give you the rights of the owner of the apartment. Registering a place of residence is giving a person the exclusive right to use housing. However, if you are the owner of the apartment (you own some share of the apartment), then you cannot be forcibly evicted.

If you do not have any rights to the apartment and you are only registered in it, then the owner (owners) can evict you from the apartment and forcefully evict you.

I inform you that according to Art. 5 of the Law of Ukraine "On Executive Proceedings" evictions can be carried out only by state executors. This means that neither private executors, nor collectors, nor the police, nor any other authorities in Ukraine have the authority to enforce the court's decision on eviction. Attempts to execute a court decision independently (by force) bypassing the procedure established by law may be further qualified as a criminal offense (self-righteousness).