My very dear one,
Thank you very much your kind letter.

My advice is for you to practice more guru devotion, Thirty-five Buddhas practice, and Vajrasattva practice. With strong purification, emptiness will come more and more.

Also, make strong requests to the gurus and lineage lamas.

One way of doing this is, if you are performing Guru Puja first thing in the morning, begin with prostrations to the Thirty-five Buddhas and then at the end of the day do Vajrasattva practice.

With much love and prayers...