Healing!???

How am i supposed to heal myself as an adult from all the traumas and whatever shitt im facing now ,if my journey since birth was not decided my me but by my genetics , parents, my surroundings, the people around me etc etc.... What does "heal yourself/ sit with yourself" acually mean!? Isn't it should be " Let my journey hurt, Let my journey heal"? How am i supposed to solve all the void inside me by meself, If i wasn't the one who created it. Should i accept this void and move on with life ? Or spend my whole life figuring out and healing myself? Or should i carry this heaviness and wait for someone to heal me? Im not expecting answers to any of the questions from you guys. I jus wanna vent it out. Anyways im open to different perspectives.