There’s different approaches for that. A good way to practice, though time consuming, it’s to first follow along the tutorial, pausing when needed, in order to reproduce what the instructor does. It’s important to stay in a learning mode and not mimicking the videos.
Then, once finish, try to redo it with a project of your own, and if needed check the instructions. It’s a good way to check if during the first time you watched the tutorial you didn’t just “copy-pasted” the instruction without consciously learning something.
It’s time consuming as I said, but very rewarding !