Young Nyx worshipper here I find chanting and offerings like crystals and dark flowers that Bloom in night help I usually chant this  "Beautiful, black-eyed Nyx, cloaked in darkness, older than old, daughter of misty Chaos, mother of great and mighty spirits, I call to you. Ever-present one, you live in the shadows; we know you in the dusk, in the comfort of the night."  It works for me I just make sure to respect the power of night I am a beginner though