What is the most important aspect of the interview process that can help you secure the job?

Confidence. And a lack of self confidence is one of the top 3 barriers parents face when returning to the workforce. Your confidence will return when you do some career planning. Assess your current skills, know what your are good at, know what you want to do, know how much you want to earn, and know your flexibility requirements. The interview is simply a discussion about how your skills and experience match the job being advertised, and assessing if you want to work for the employer. Do not mention your family situation – it is no-one’s business but yours.