I'm so sorry to read this. I think you need to be honest with them, first and foremost. That's very important. Also I think that you have the right attitude in thinking that you want to use this as an opportunity to grow and change. If you do go into a job that you do not enjoy, make sure to convey to your family that this is a temporary solution.

May I ask if you are the main breadwinner? Is there any way that another member of your family can look for a job as well so all the pressure isn't on you? If they are already working, is it possible for them work more hours to make up for the loss of income? Bottom line: tell them how you feel when they nag you about what you need to do. Remember that if you haven't told them, they don't have any idea. They aren't mind readers. I hope this made sense, and that I didn't come across as condescending. I apologize if I have. I wish you the very best and good luck in your job search!