Looking for advice/ direction newly single mom of 3 young kids

I am newly single, left a emotionally/verbally abusive household with my 3 children ages 1,3, and 6. I don’t have a car, money, or job. I have spent my last 7 years dedicating my time to building my family as a stay at home mom. I went on vacation with my entire extended family and my spouse was openly mentally abusive in front of everybody for the first time. My parents advised that I come stay with them. Now I am stuck in limbo because I don’t have a car/childcare/job. I spoke to my ex spouse about enrolling our children in daycare so I could get a walking distance job until I save enough for a car and he refuses to assist me: I was hoping to find any resources for charity cars here on Reddit because my searches came to no avail. If I can gain access to reliable transportation I can Uber/DoorDash until I raise enough funds to enroll my children into daycare to find a regular job. I am scared and don’t know where to begin. I never thought I would find myself in this situation so please be kind.