If you are _______, you are capable of doing or deciding by yourself, rather than depending on other people for help.
well-informed (a): knowledgeable, well-informed
determined (a): determined, resolute
self-reliant (a): to be self-reliant, to rely on one’s own strength
reliable (a): reliable
Translated: If you are self-reliant, you have the ability to make decisions for yourself, instead of depending on others for help.