This is pretty good advice. I bought some adjustable ones. They're fairly expensive, but you can start with a lower weight and work your way up. You can also do

This is pretty good advice. I bought some adjustable ones. They're fairly expensive, but you can start with a lower weight and work your way up. You can also do other exercises at lower weights to work smaller muscles. The kettlebell reddit (/r/kettlebell) is a very good place to learn from - lots of people helping each other get the technique right. Seems the most common mistake is "hinging too early" in the swing.