weanlings have always been tons easy for me. The first thing I would do is separate them. Make sure you are the only one they bond with, NOT each other. Lots of loves and pets and time walking and training at the halter usually works for me, but then I've only worked with QH fillies that are SUPER easy because that's just how their disposition is. Good luck though! I would also recommend seeing a trainer or some other experienced horse person if it's possible. They can help in SO many ways that I can't even explain. Have fun though, weanlings are usually pretty easy, I think!
To rein a horse is not only to guide him,
but also to control his every movement.