Need help for rent

Hi, I am a newly single mother to 2 small children and I am in desperate need right now. My husband was recently murdered and its been taking a toll on us, emotionally and financially. I’ve been dealing with a lot of stress from some bills that I have and at the moment I am short on the rent about $500. This is all we have to lay out heads down and I cant think of any other possible thing I can do to get this money. I’ve exhausted all I could and anything would be greatly appreciated. I start at another job in about a week and I promise I will pay it back. I would be glad to go into more details, even a phone call if thats what’s preferred. 
I added a cashapp, my cashtag is $Ljhns487
Thanks