I lost my car keys
What did you do to loose your car keys?
I was drunk and just forget where I had placed them.
While it is okay to drink in moderation, it's wrong to drink to the point where you black out and not remember where you have left your belongings. You might need help with keeping your drinking under control. If you frequently black out during drinking you should contact a support group such as Alcoholics Anonymous for help.
I don't fucking have time for AA. Quit acting like you know what's best for me.
This may be something that shows you that you need to be super careful with your things when you are drinking. If you find that you forget things when you begin to drink, it may be good to simply place them somewhere you know well before even starting.