Color me confused. Not that that takes a whole lot these days. Lately I am about as sharp as a basketball.
First thing: brother, we all have work to do.
Now, from the above and your profile I am gathering that you are currently 20 years old(started at 12 and have 8 years of training), are employed by Power Plate in some capacity, and are a lean 140 lbs. If any of this is in error, please correct me.
I think answering the following may assist us in helping you.
1.) First, what exactly is your goal. I know you wrote "to create a physique that is inclined for skill in movement and various other qualities like balance, agility, speed and power.", but physique brings to mind aesthetic/form as opposed to ability. Whatever you are well practiced at is something your body is "inclined for skill" for. What is that something? Or is the goal to have the look/appearance of someone proficient at something? Again what is that something.
2.) You have stated that "no one ever taught me anything". So you have no formal or informal instruction in any fields specific or related to combat sport or exercise? Never had a coach for a sport or even a more knowledgable workout partner? If that is the case why?
3.) What is your background in the following:
A.) Sports: What have you played and when.
B.) School: Grade and if relevant course work completed.
C.) Your own training: What do your workouts look like now? In the past?
4.) Where are you at with regards to your goals? It is impossible to make any assessment without knowing this.