genuine question.

had anyone here ever on therapist? is therapy really effective, is it real? is the therapist giving an advice about how you should go of what you're scared of/to do?
like, for example, I've stayed inside the house almost all my life, I've always been scared to people ever since i was a kid and idk why but getting older i stopped going outside, and i hate myself for it, and every year it just gotten worse, so like, if i go to therapy and my therapist said I should go face people WHICH I AM SO SCARED OF I'D RATHER DIE (im scared of my own fam), what shall i do then?