My 2004 Jeep Liberty Spun out on a turn and kept spinning then hitting a sign on the side of the road.?

well last nite, during heavy rain. I was making a left turn on an intersection, I dont know if pushed the gas a little too hard while turning but all of the sudden i started spinning so fast like 3 times (while i was spinning i was steering the opposite way to reduce spin) then my car got on the curb and ran over a sign, resulting with a flat tire. Thank goodness there was an empty parking lot a couple feet away where i can drive to. So why did my 2004 Jeep liberty Renegade V6 4X4 (automatic) 3.7L spin out? i even had all terrain tires. Should i have set my car to 4X4? I just recently bought this car and dont know how to shift from rear wheel to 4 wheel.