Of course you're angry! For some reason, it seems quite common for us alcoholics to do something self-destructive when something bad happens. I'm sure you've worked hard to stay sober and it's an accomplishment you can be proud of.
If you drink you'll feel ten times worse (alcohol is a depressant, remember). If I was in your situation I'd increase my meetings, the one thing that does help with extreme emotion. And, going up to a newcomer and asking how he/she is a way of getting us out of our own heads.
Another thing is writing a gratitude list. It doesn't mean you have to feel gratitude, but listing the positives (your life, health, sobriety, friends, sponsor, home, etc) shifts the mind from anger to gratitude.
Someone I know with almost 40 years says, "Life only s*cks one day at a time ...."