One day I notice smoke coming from under my hood and it started to smell badly and as I was going down the street it cut off on me. I didn't know what to do but before all of this had happen I had just had a minor oil leak and I didn't know if that had something to do with it or what,so what should I do now?

The car may be overheating. Check the coolant level and hoses. With an aluminum head engine, it's easy to blow the head gasket and damage the valves--it only takes allowing it to overheat once. If necessary, have the car towed to a mechanic for repair.