First of all, I understand that you are facing the dilemma of owing 120,000 yuan on credit cards and online loans***, and it is about to be overdue. I can't give a clear answer to the question of candor because every family situation is different and how to handle the situation will need to be decided based on your relationship with your family and your communication style.

However, I can offer some thoughts and suggestions for your reference:

1. Consider the parents’ personality and mental capacity: Understand the mother’s personality and emotional state, and if she is likely to If you are too worried or unable to accept it, you can choose to confess it to your father first and ask your father to help you communicate with your mother.

2. The pros and cons of a full confession: A one-time confession may put you under greater pressure and responsibility at once, but it also shows your honesty and determination. Staged confessions can lessen the shock to parents and give them some time to accept and understand.

3. Offer solutions and plans: Not only tell your parents the seriousness of the problem, but also explain that you are already looking for solutions and developing a repayment plan. This will show them your responsibility and determination while also reducing their worries.

In summary, the most important thing is to communicate honestly and authentically with your family and demonstrate your determination and willingness to solve the problem. Every family is different, and you can only make the best decision for your family's situation.

Please note that these suggestions are for reference only, and the specific approach needs to be determined based on the actual situation and your relationship with your family. If you are confused or need more help, consider consulting a professional financial advisor or attorney.