Bad coolant leaking?

Thanks Ken for replying back and also a code P0302 pop up for cylinder 2 misfire. How this situation started was I was on my way to work which is about 14 miles/18 minutes away. As I was driving, I turned on the control nob to 1 to get heat normally I get heat but that day the heat did not turn on nor did the gauge move. It stayed on c, and as I made it to work the car had white smoke under the hood. My dad looked at the car and noticed the radiator was cracked at the top as the steam had to escape from somewhere. I then in that moment made a u-turn back home, all green lights/expressway. I knew I probably had did some or more to the car in doing that but the car never let me know until the white smoke started. Next time I’d have the car towed in any situation. My dad think I blew a head gasket so I brought a gasket test and we will see. At home before any of this was about to happen, we had noticed the leak in the driveway but didn’t know where it was coming from on the car as it was dropping little by little until now.