“We talk to ourselves incessantly and choose our paths as we talk to ourselves. Thus we repeat the same choices over and over until the day we die, because we keep on repeating the same internal talk. A warrior is aware of this and strives to stop his internal talk.”
Castaneda was quoting ancient Mexican Shamans, yet this teaching can be found throughout the world, along with the first step out of talking ourselves silly: becoming aware of it.
When I noticed how adolescent or ridiculous my thoughts were and began to laugh at them, it became much easier to grow past them.