Look hypnosis does work but there has to be a conscious desire to know something or change habits in order for success. Hypnotism for weight loss, smoking cessation and addictions have proven successful in the past but the person has to want to change or stop. It is more like a nudge of the subconscious mind for more will power instead "suggestion" to make you do what you don't want to do.
Does hypnosis work? Most definitely but nothing magic about it though. Forget the sound and resonance type though. And if you are not trans then hypnosis will not make you trans or feel opposite of your internal gender. What it may do though is make you more confident to be more open about who you are.
I have read studies on past life regressions and do I believe it? Maybe? It is still not physical proof of reincarnation but neither is heaven or hell proof of single life either. But... You all know who you are deep down so no one needs a "youtube" video to prove it to themselves. But you do have to know yourself on a deep level so meditation to me is way more important than hypnosis.

I know all about false memories and all that but hypnosis can't be proven in a court of law and why regression is not admissible for a court and convicting someone for a crime. Do I believe in false memories? Not really. But there is a Burden of Proof and the subconscious mind is not proof beyond the shadow of a doubt. Then a lot of people have seen the sideshow about hypnotic suggestions so...
But the thing to do is to get to know yourself through meditation and who you are on a deeper level. The Sounds don't work though. And nothing will make you trans if you are not already trans.
Now one thing the videos especially the images and the talking ones may do is make you more confident to be more open about it.
I hope that makes a little sense. In other words and as an example the smoking cessation hypnosis, you have to want to subconsciously want to stop smoking or it doesn't work.