When talking about things that we did in the past but don't do now we can use the expression used to. The negative form, to talk about things which we didn't do in the past but do now, is didn't use to.
Used to and didn't use to are only used to talk about past habits. There is no present form. To talk about present habits we can use the present simple. When using these structures there are often two parts to the sentence, something about the past and something about the present.
That is a personal question that is supposed to be about your life. We cant help you write a short summary about something if it’s your life. Just go back to one of your favorite memory with your father or father figure in your life. Ince you do that go into more details and explain It.