Support Grandma Melanie & Grandson's New Start

Hello, my name is Melanie Kemp. I am 49 yrs old with 2 daughters, my youngest being 21 and my oldest is 29. My oldest daughter is having a very hard time right now and I was left her son, my grandson to take care of. I had to step in and take care of my grandson unexpectedly. He is 3 almost 4. I need help with everything. He needs clothes, shoes and most importantly food. I dont get food stamps or any assistance. I work a full time job and have had to put some things on hold. My car right now is not working, it needs repairs, not sure what but it won't start. My car has been unreliable for a few yrs now, they told me not long ago I need a new engine and ever since my car has needed so many repairs. I just dont know how im going to get it fixed. I believe it may be the starter but not sure. I want to trade it in when im able to get it fixed. I need a reliable car having my grandson and him needing to go to Dr's and appts. I am very overwhelmed right now and need help. I dont know what else to do. But I want him to feel loved bc hes to young to know whats going on and why mommy isnt here.