You may think your driving skills improve when you are drunk because you have fewer inhibitions and less judgement. This does not mean that you are actually a better driver when you are drunk, you just think you are better because you feel more relaxed and less anxious about other drivers.
This actually makes you a much worse driver and very dangerous to others on the road. You should definitely not attempt to drive when you are drunk m, even if you truly believe you are a better driver when you are drunk- you are not. Drunk driving is extremely irresponsible and dangerous.