How can this ⬇️ affect my husband & myself credit score?

mother of 2 💖💙

Hey ladies, maybe this is a very personal question & im sorry to ask but I just don't know what can we do. My husband & I financed a car 3 months ago, we both have good jobs( well, I just lost my job last month) & now we have to cut out budget. We are paying for a car & almost finishing but paying for 2 cars plus others bills is IMPOSSIBLE with only 1 income. My question is, if we return the car that we just financed, how bad that will affect our credit score? We financed the vehicle using both credit so definitely will affect both of us. But I really want to know how bad. We never had any issues before but unfortunately things happened & we prefer to have food in our house that a vehicle that we can't afford at this moment. Any advice of what to do or any similar situation. Again, I'm sorry😞. Also, I now this isn't a controversy topic but I just don't know where to post this.