Need advice on Anderson Brothers Bank, Auto Loan, SC

So, long story short as of Nov 11, I am 3 months behind on my car payment. I bought the car from a buy here pay here but got the loan with Anderson Brothers Bank. I’m paying 23.9% interest on a 5 year loan for a 2017 Honda Accord Sport Special Edition. I’ve spoken with the bank and they told me if I could come up with one payment, they could take the other 2 payments and add them on to the back end of the loan and I’d be caught back up but the maturity date would be extended. I know nothing about this and they already got me with the interest rate because no one ever taught me how to deal with a dealership when it came to buying a car. I should be able to come up with the money in the next 2 weeks, hopefully I’ll have atleast 350$ of it by Tuesday. I don’t know what to do because I’m scared I’m gonna walk outside and my car will be gone. My husband hasn’t been getting the hours he normally was as he’s a crane operator and with the weather things have gone from like 6k months to almost 2k months. I’m also paying 573$ in insurance with Geico and I have a perfect driving record. No one can tell me why it’s so high. Any advice is welcome but please be nice. I know I’m behind, I know I’m responsible for paying for the car. I just need to know if you think they will come take it before I can make the payment as they won’t take partial payments. If they did I probably would have been able to pay it by now but who knows.