i made home made choclate with cocoa and vegetable oil. now this is not setting. i dont have access to cocoa butter.what do i do?

Could you clarify? Are you following a recipe? Are you baking cake, making fudge, or cookies, or trying to produce actual chocolate? Although you can substitute cocoa and fats for chocolate in some recipes for baked goods like brownies or cake following a formula, it does not necessarily follow that you can reverse-engineer chocolate itself out of cocoa powder and fat. Perhaps you could provide a more detailed explanation of your recipe.