Learn how to make more friends. Communicate. Learn how to talk with people, how to be adaptive and contextual.

Learn about yourself as much as you can, either via introspection or from other people. Learn what your values are, and what makes them satisfied. "You are your own ally, when you make yourself an enemy even though you should trust yourself, you become the victim hit the hardest".

Learn agency. Remember that you are a person, and you can take initiative.

Learn that another person's behavior toward you is just a reflection of their relationship with themselves rather than a statement about your value as a person.

Learn to genuinely tell people that you love them. People are precious.

Last of all, actually learn how to use knowledge of all of the above in your situation.