This is slow and descriptive. You can use the arrow keys to go back and forth. This goes into almost everything you can do with redstone. Please take your time if necessary. If you still don't understand, I'm working on a redstone tutorial on my YT using Minecraft 1.18 Bedrock edition. (I chose bedrock because you can waterlog pistons)
If you're more experienced, then you can press a button at the bottom of the screen, each with a different component on the front, and it will take you where you might want to know more about. I WILL ADD MORE SUBJECTS. THIS IS IN BETA. "Hey, can you add..." Yeah, I probably will. Press the s key when you see a diamond block...
