Hell

They say the path to Hell is broad and Heaven is narrow… I’m a new believer trying to understand, please bare with me here… So believing in God and the Bible means accepting the fact family members even ones we love are in Hell and we’re supposed to just be okay with that and follow God… God seems so harsh and I’m scared even writing this.. it says God is love and just and I get the sense of justice but if he’s love why is he jealous and wrathful if we don’t do what he says word for word??