When someone only cares about themselves

When someone only cares about themselves and lacks empathy or consideration for others, they are often described as being "self-centered," "selfish," or "egotistical." These terms suggest a focus on one's own needs, desires, and interests to the exclusion of others. Additionally, the term "narcissistic" is sometimes used to describe individuals who have an inflated sense of their own importance and a constant need for admiration, often at the expense of others.