For example, if your father or mother asks you, on the Sabbath, to mow the lawn, tell them that you will do it at the first opportunity after the Sabbath ends. If your father or mother asks you do something that does not violate the Torah, the Torah requires you to do it. Family harmony is of paramount importance. The Torah desires peace for all of us. War is only waged as a matter of necessity.
Peace is the preferred option.
And the best path towards peace is silence. The Talmud teaches that the world continues to exist only because of those who keep silent during arguments. A baal tshuvah should not try to make his family frum . That will result only in family strife and alienation. If you desire your family to become frum , don't shove it at them.