What's the meaning of "juggling of credit cards" in this context?
This is from the book, After You, and the narrator, I, had just been fired from her work and was telling about it to her family.
I knew the real reason for Dad's anxiety. They relied on my wages. Dad's boss had been muttering about possible redundancies for months. There were murmurings at home about debts and **the juggling of credit cards.** Dad had had his car written off by an uninsured driver two years previously, and somehow this had been enough for the whole **teetering edifice** that was my parents' finances to finally collapse. My modest wages had been a little bedrock of housekeeping money, enough to help see the family through from week to week.
I kind of get what it means considering the context, but, say I were to translate it into my language, I don't know how because I don't exactly know what the part marked in stars suggests.
Also, could you help me with the second part in stars? teetering "edifice"? Is it just an analogy?
Thanks in advance.