How take volleyball to the next level? I'm a Minneapolis teen?

I love volleyball, and play it all the time. I am quite good. I am almost fourteen. But I want to take volleyball to the next level and improve my spiking. I keep finding clubs that are for beginners and are too easy- or clubs that are for high schoolers that are too hard. Do you know a club that lets my age group in that competes? Something new and challenging? One that's in the Twin Cities area (within 25 miles)?