Sadness and alcohol

I’m really very down right now. No matter how hard I tried, whatever I did, I still feel so sad. I feel like the world is so dark right now. The whole day, I went through without laughing and smiling. It feels like my world is ending.
People find it stupid to drink to forget their worries. Because it doesn’t take away their worries, it doesn’t give them solutions, it is just procrastination of their problems. And my question is: Have you ever felt so sad and down that it takes away all that you feel?
It is the same argument as in quitting smoking. People always ask you to quit smoking because it is bad. To this, smokers ask, “Have you tried to stop smoking before? If you haven’t, then don’t try to understand what I am going through.”
So, have you ever felt so sad and heartbroken? So sad that you cannot feel anything else because of a slumping feeling in your heart? I have. And when times like this, I can’t sleep, I can’t smile, I can’t concentrate on anything. Even if there is a car going towards me, I wouldn’t be able to dodge it.
The only way I can get some rest, to forger what is happening to me, is to drink. Drinking makes you drunk, makes you wasted, makes you do stupid things. But there is one particular reason why I drink. Because my brain shuts down and I get sleepy. I won’t think more of the worries and sadness I feel because frankly, there is nothing else I can do anymore. The more I think about it, the sadder I become. So let me just get drunk and pass out.
Why do you think people drink when they are sad? To release tension? To do stupid things? I am not stupid. I know that my problems won’t go away. But I also know that no matter how hard I try, I won’t be able to sleep, I won’t be able to concentrate and I will end up sleepless the whole night not doing anything but feel sad and cry. I’m not stupid to not know that it is bad for my health. But I don’t see much upside to my life now.
So the next time you tell me to not drink, let me ask you this: Have you gone through what I have?