Dream on buddy.
All you need to do is look at job ads for chopper pilots. You will very quickly notice that all require a minimum of 500 hours commercial time. For offshore jobs, they want at least 1,000 hours in a turbine powered chopper. Unless you know somebody fairly powerful you are not going to get a job flying helicopters for a living straight after graduating. There's a small chance of an instruction job maybe but for that you'll need to do additional training. It's a tough world out there.