My very dear Dolma,
Read the Diamond Cutter Sutra four times. This is very good, then the knot might go away.

Your main motivation is to purify gross and subtle defilements to achieve enlightenment for sentient beings—the numberless hell beings, hungry ghosts, animals, human beings, suras, asuras and intermediate state beings—and to bring them to full enlightenment.

With that motivation, read the Diamond Cutter Sutra. Think the knot has gone as you are reading the Diamond Cutter Sutra. It becomes empty. You can meditate on the emptiness of that; not so much ordinary emptiness, but meditate on the tong-pa-nyi of that.

Thank you very, very, very, very much for all that you do. I know that you did so much practice even for me. Please continue to make your life most beneficial for the sentient beings with bodhicitta as much as you can.

With much love and prayers...