Qigong fortifies Qi, Neigong utilizes that Qi internally, and Shen Gong is the end result of this refinement. This is a simplistic view, but they are all interconnected.
Qigong is a term variously used (and abused lol) and it may involve both internal (Neigong) and external (Waigong or hard/external) techniques.
By the way, some specific types of Qigong are aimed at bodily healing, they get called Medical Qigong. There are also astral/spiritual Qigong versions, Sorcery practices like in Wudang clan etc. Qigong is like an umbrella term today that may or may not include focused, deeper internal cultivation aka Neigong - it all depends on specific types of Qigong. For example, the Xiang Gong or Fragrant Qigong, a popular version, is primarily aimed at bodily healing, while Fajin Gong is aimed at astral travel.
Yes, ancestral beings audio could help. And this IPF dog tag too. A lot of times, Deities, enlightened beings, angelic beings, Bodhisattvas, Buddhas, Devas etc. are grace embodied and very willing to help and guide us, but we do not perceive them due to our own limitations. The IPF tag could be a game changer in that in removes the veil that prevents us from sensing and communicating with them. I was reciting a Mantra for a long time and did not get any vision of the Deity or receive grace. And eventually, my mantra was perfected and the Deity connected. A revelation I got from Her was: “I was always here for you, but you just were not prepared to sense or see me and receive my guidance”. Dream’s tools are a gift in that years and decades of practice can possibly be reduced to months!