Oh my friend through this disease, you are NOT hopeless i have felt tht way many times, there were even times death would have seemed a blessing to me. First you need to quit the booze , but in order to do that you MUST realize you are powerless over alcohol,then you MUST want to quit more than you want to drink. If those line up and you work a program (AA for me) you can and will quit. Then the depression can be dealt with. I was in several long term 30 + day rehabs before i realized this, most were dual diagnoses programs, which they all told me there was no meds on earth that will cure the depression as long as you continue to drink.
You are young and have a great chance of saving yourself from a lifetime of misery, please get help.............
Take care,
John