RWD wheel spin

This is going to be a learning process for you. There are a lot of people who drive the Jeep Liberty without the problems you are having. A RWD vehicle with a V6 engine (3.7) can spin the tires if you accelerate quickly especially on a wet or icy road. It’s the nature of the beast. You just need to slow down. If not then the vehicle will have to be driven in 4WD which will cause your fuel economy to suffer. I would opt to slow down.