You should be concerned my friend, drinking is not a healthy temporary fix. I work at a bar and have the temptation to drink when i am very stressed or upset at a bad table. Our staff treats it as common practice, so I make sure I fast from alcohol every few months to take control of that habit. It is definitely another thing to be taking shots by yourself, before bed, before you go to work. Please be careful! Alcohol should be something you enjoy when you're happy or content, it should merely enhance your already "good" feelings. It seems you feel concerned already, I hope there is someone close to you you can share this information with in confidence, and that they will support you in this rough time...then again there is always us on PC!