My Moka pot (stovetop espresso maker) is clogged :(?!

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Try running it through a cycle without any coffee, just water. If it works, it's not clogged.

If it's clogged or you use too fine a grind, the pressure will vent through the release valve on the side. If that isn't happening, it's not clogged.

I've had the release valve work once when I used too fine a grind.

One other possibility is the gasket has gone bad, gotten damaged, or become slightly encrusted with coffee grounds causing pressure to leak out between the upper & lower parts. This will reduce the amount of water that goes through the grounds. You may also not have not quite tightened the seal properly. This won't be as obvious as the release valve, but if you watch it, you'll see steam leaking out of the sides.

I roast my own beans & have seven ways to brew coffee. My moka pot is one of my favorites.