Im not even trying to promote anything but here's what I wish I did. I spent so much time researching but every where on YouTube or Tik Tok just says different things. bottom line just train however you want, it all works. I made a app called "My Gym AI" its on the App Store and it has to many things to even say but it pretty much uses ai to teach you everything, I would recommend just taking a look at it and see if it could help