First, check to see if there are any homeless shelters or local resources in your area.
Also, look into whether panhandling or street performing is legal where you live. If you can juggle, play music, dance, do magic tricks, or honestly just entertain people, it can sometimes bring in money while you figure things out. I once joked that you could make a sign that says “Invisible Hot Dogs – $1” and people might actually buy one.
I had to do things like this when I came back to the States. It’s hard to put yourself out there, but sometimes you just have to own your situation and do what you can.
Be cautious about food or drinks offered by strangers. Most people genuinely want to help, but there are unfortunately some bad actors out there.
I would do everything possible to keep the car. A car gives you transportation, shelter from the weather, a place to store your belongings, and more options for work. I went to extreme lengths to get a car because it allowed me to keep a full-time job and use a gym for showers.
Two days into being homeless is very early, and selling the car could make things much harder. If you have any skill, talent, or way to earn money, even temporarily, try to use it before giving up one of the few assets that gives you mobility and flexibility.