I took the freeway for the first time.

I've never hadn't taken the freeway before.

Last Sunday was my frater's fathers birthday.

So I came went to the Jeongseon-gun that where my parents live.

I drove alone, I'm not afraid of drivig driving anymore.

I'm good at cutting in passing other cars.

It's so overcrowded with a car.

Some of the car drivers have no manners.

I don't submit to no manners's car any drivers manners because I'm a brave woman?!^^

Last Sunday was my father's birthday.

So I came went to the Jeongseon-gun that where my parents live.

It's so overcrowded with cars. (I added an "s" for the plural form of "car" -- since it is overcrowded, we assume that there are a lot of cars.)

I don't submit to no manners's car give in to rude drivers, because I'm brave woman?!^^

I hadn't taken the freeway before. "hadn't taken" is correct because it happened entirely in the past.

I drove alone. I'm not afraid of driving anymore.

It's so overcrowded with car. Or: There's so much traffic. People make crowds. Cars make traffic.

* Do you know Jeongseon-gun? Have you heard of Jeongseon-gun? You can write, "Do you know of..." but, "Have you heard of..." is more common.

I'm good at cutting in front of other cars. (Is this really what you mean? ;) )

Have you ever driven in Korea?

It's so overcrowded with cars. (car is wrong, and a car is wrong, here)