Issue with the cooling system

What is your question?

I just recently purchased this vehicle from a coworker and I was on the way home from work one day when I noticed the vehicle started to overheat so I immediately cut the car off and coasted to where I could get off the road to avoid traffic. I later went back and checked and the whole block was covered in antifreeze and had a strange smell to it. I got the vehicle to where I needed to go and after work today, I started to check to see if the thermostat may have been causing a clog (if that is possible) and I was having trouble getting it out.