If reading the whole Bible in one year is a bit intimidating, and you've already read the entire New Testament, how about trying to read through the Old Testament in one year? The following is a systematic way to do so. Each month has proportionate readings. To cover the entire Old Testament in twelve months, you need to read only 76 verses a day. That's doable.
January through March
January, Psalms, Proverbs
February, Genesis, Exodus
March, Leviticus, Numbers
April through June
April, Deuteronomy, Joshua
May, Judges, Ruth
June, I & II Samuel
July through September
July, I & II Kings
August, I & II Chronicles
September, Ezra through Song of Solomon
October through December
October, Isaiah, Jeremiah 1-26
November, Jeremiah 27-52, Lamentations, Ezekiel
December, Daniel through Malachi