Hehehe, the videos on YT are not real spells, they are Altar porn as
@FireBorn rightly says. They are a theater for you to see. There is good value to them as it will convince your unconscious mind that this is normal and works, which can definitely help your practice, but only to certain extend.
On my YT channel I usually give theory and some meditation videos for listening and focus. Didn't film any ritual yet and I would not film a real ritual anyway, unless I would have intention that would include YT and people watching it. Probably in style of convincing them to Like and Subscribe, lol! Maybe that is what some of those people filming rituals do, making their intent to get more subies, so they can get more money.
You can talk about your spells, theory is not a problem. with practice it would probably be good if you speak about spells that are no longer active and already brought results. And yes, talking about your spiritual experiences is actually helpful for your development, offering you more opinions on the matter, which can be very helpful. I definitely find it useful to share some of my own experiences, when I desire more perspectives on the matter. But share only things that you do not mind being criticized, as that is always a possibility. Be a wise guardian of your own life and secrets. No need to share everything, especially that what you hold dear and do not want to be mocked by any chance.