Marriage is not for the faint hearted. If you are not matured enough for what comes with the name married couples, do not think of it because you will outrun yourself. Marriage comes with responsibility and commitment, as a married man or woman, you have obligations and vows as it bonds the couples together.
Before you get married, make sure you are stable all round even if not all round but at least be sure of your income to be able to sustain you and your family so that you do not have any issues because that is your responsibility as a man of the house. Nobody would advise you to do that because the day you asked her out, you already signed up facing responsibility as a man and it would be your cross to carry even in marriage.