Help Susan (mom of four) fix her van

Hi, my name is Susan and I am a single mom of four children. I have a six year old, five year old, three year old and two year old that I am raising on my own, due to unforeseen choices made by their father. Thankfully, I have been very blessed to pull myself out of multiple situations, caused by my now ex and trying to move forward to better myself and my children. Unfortunately, I have come across an issue that is costing me more money than I am able to make. The transmission on my van recently went up and unfortunately it’s going to cost $5100 to fix. Right now I have no reliable transportation to help get my children to and from therapy appointments as well as myself to and from work. Things as small as a trip to the grocery store are even becoming difficult. My weekly pay has zero room for any additional expenses and without having transportation I am unable to work any additional shifts and have been trying so hard to save any penny I can to put towards the repairs needed. I personally was able to come up with the down payment of $600 over the past three months to get the total owed down but I am not getting any further. I normally would never ask anyone for help, anyone that knows me knows that but I don’t know what else to do. I am constantly pushing and pushing and I am at a loss. Even if you can’t help financially I really appreciate you taking the time to read this. Please keep us in your prayers while this mama keeps pushing to continue to build a better life for myself and my kids.