Debt Collector threatening to sue me!

Hey, I created this throwaway account and I am writing this here because I do not know what to do or how to approach this, so any advice, tips or help would be appreciated. Almost 2 years ago I was laid off from my position and have been bouncing around doing very low paying jobs until I find something else in my field. I had a credit card that I was paying off regularly but since being laid off I was not able to keep paying it off as well as pay my housing and pay for my family to live. My credit card balance was $10100. Since I no longer had money, I was not able to pay the balance and the monthly payments and it went to a collection agency. They called me and talked to me and I asked them to please wait until I was able to get my life back in order and would start paying my debt off again.

Yesterday I got a call from them saying that the statue of Limitation is expiring soon and that if I do not pay them monthly payments of $300 starting today, that they would then sue me and take me to court. I tried to explain that If i was able to pay them $300 I would, that If i had any assets like a vehicle at the moment for e.g, that I would sell it to pay the debt. I asked them if there was any other way we could resolve this but the lady said that it was not her problem how I did it but that i just have to start the $300 a month. I do not have that. I am in a bad situation with my balance in the negative right now. What can i do? yes i messed up at the beginning and I understand that I should have been better with my finances but I am searching for a well paying job daily with no luck. I am also not on EI or government assistance now and extended family is helping with housing and food. I cannot ask them for money, they do not have it. I have no other assets.

The collection agency has not send me a letter with my balance and the details yet, I just received an email from them yesterday with e transfer information and payment links to where I should send the money. The lady on the phone was very rude and I am scared that I will go to court. Should I be talking to a bankruptcy lawyer or a financial agent? any information would be very much