Truly I hate to do this to you all but; you can watch all the videos and read all the blogs in the world but you cannot learn to sew without at some point picking up a piece of fabric and fucking it up. No tutorial exists that will stop you at some point ruining this poor piece of cloth. The visceral act of holding a project and wondering where you went wrong is the only way to learn sewing; you cannot escape it. I’m sorry
Also!
Sometimes, you can fuck it up a dozen times in a row and not have any sudden epiphany about what you’re doing wrong, and yet, despite zero indication that you’re doing anything different, it will be a little less fucked every time.
This will feel like insanity, because you’re doing the same thing over and over and getting different results. But it’s actually how practice works. And you have to do it to get better.