I crashed my car and don't know how to own up to it
You need to admit it was your fault so you can move on?
I don't want people to see me as an unreliable and drunk driver
This is just one mistake and you have time to learn from it. Owning up to is important and then you can move forward.
It's a shame that nobody knows how I feel.
My guess is that you're feeling pretty lousy because you got drunk and crashed your car. You should consider getting some help if you have a problem with alcohol.