A first step in getting out of a trapped life, to a real life, is to become free of toxic people.
Nobody is perfect; but most people know, to some extent, their faults, feel empathy and try to be better. But some people cannot see their faults, lack empathy and are always 'right' - the most important thing to know is that they cannot be 'fixed', understood, or healed by you (only a highly skilled psychotherapist stands a chance, and that's partly because there is no life relationship).
If you cannot (yet) get away, at least become aware that it is not your problem.
One can sense some similarities in dynamics with geo-politics.
A variety of voices on this topic - in no particular order (may need multiple viewings because it can take time to understand more than superficially) ...
[video v=FDxVRjQ8LKE] Plus more videos ...