I am tempted to go down and buy beer right now, how should I stop myself?

So I feel a tiny bit lousy and insecure, but not too bad. But still, I’m tempted to go buy some beer, I want a bit of buzz right now, but I know I shouldn’t, it’s a Tuesday afternoon right now and I’m with no friends, so it’s not a good idea.

What do I do? I’m too afraid to talk about this to any of my friends, most of whom are busy right now anyway.