Is it worth sacrificing micro play to learn macro play?

Stupid question I know.

But I just felt like I needed to ask because I feel like I'm not doing something right and maybe people experience the same thing, whenever I start watching videos (thanks to someone here on the boards) and try to practice and apply it in game, I almost always lose the lane and sometimes the game itself because I'm so focused on practicing freezing that game that I don't perform very great with my champion. When I LEARN something, I don't usually get tilted, but what does is worrying about getting reported when I'm just trying to learn something. Then when I really think about it, normals are meant for people to have fun and improve, so maybe people that perform bad work on these things as well?

Is it worth it practicing things individually each game, or will this just make me play worse and not improve. Because whenever I practice farming and I get pretty good at JUST the last hitting, I don't play the actual champion very well and sometimes at other aspects of the game as well, such as knowing when to rotate, harassing enemy, etc.