All I can say is hang in there. I was unemployed for a long time and just recently lost the job I obtained after that period. I forgot all of the tools that I learned in AA and treatment prior to that so I had already started to drink. Once I lost the job I went on a spiral in the wrong direction.
It is tough but I can take pride that I am in the middle of day 2 of my sobriety and never want to look back.
I do get anxious before interviews as well. Sometimes they go well, sometimes not. Keep pressing forward, and as I can remember, I did my best interviews after not drinking for months.
Please keep your chin up and instead of drinking, find something else, anything else.
Take care.