07 A4 l2.0

My oil light keeps coming on so I kept putting oil in it the oil light still came on so I accidentally poured a whole bottle of seafoam in crankcase I start driving there was lots of cloudy why smoke so I hurried and try to go get a oil change going up a hill my car completely died and I had to get it towed home now the car cranks but does not start I got a oil change my oil was over filled Today I’m going to try to change crankshaft sensor do you guys think my engine is fucked