Monday 18 January is officially designated as the gloomiest date in the calendar by Cliff Arnall, psychologist and former tutor at Cardiff University. It’s based on a mathematical formula that takes into account a number of "depressing" factors, including weather, debt, time since Christmas and failing New Year's Resolutions. Dr William Holden, author of the guide, a self development book offers six easy steps to overcoming the barriers stopping you from realising your dreams.