When you’re busy thinking about what you assume you should be doing in order to move this way or that way, which muscles need to be activated, etc., you’re only getting in the way of your body. If you want to develop your actual movement capabilities rather than just your philosophies about movement, then focus your attention on the SENSATION of movement and the right intention.
To stand up from a squat, for example, there’s no need to try and activate your glutes. Simply stand up with ferocious intent and feel the sensation of standing up naturally. You do not govern your muscles. Let them work naturally. An infant doesn’t learn to walk by receiving mechanical instructions and intellectual cues from an expert walking teacher. The only true teachers are gravity and your own body sensations - just don’t override them with excessive thoughts.
A good teacher/coach can help you get more in tune with your body and the sensations of movement by exposing you to tasks/situations that pose a variety of movement challenges for you to (re)learn natural movement through a safe process of natural progression and development, while also developing a superior level of strength and resilience to support movement. A trainer who dictates simplistic exercises and gives you wrong mechanical performance cues is robbing you of proper and natural development and messing you up. It’s more of an art than a science. It’s like dancing. You can be taught choreography, but you cannot be taught how to dance... you must learn and feel it for yourself!