Wow, 7 months sober. u can do it again, get another sponsor, one that understands you better. I dont mean someone who will reinforce your status quo of unhappiness by agreeing with you all the time, but someone who understands depression better. I dont see why a sponsor can say such a wreckless thing without thinking about or being aware of the consequences.
Start some new hobby as soon as you stop drinking again which hopefully will be to day.