yeah, stuff to repair various body parts takes fat and protien molecules, actually amino acids and triglycerides, but for energy, actual energy to fuel the activity of the body, it is glucose.
carbs get converted to glucose, fats are three glucose molecules stuck to a fatty acid, and proteins get deaminated and rearranged molecularly into, yes, glucose, then they are thrown into the furnace.
Balanced diets are good because the provide all kinds of materials in various quantities that we need to maintain life and do ongoing repairs.
But energy, is derived in the end from glycolysis, which is fed by carbs directly, fats (the preferred stored arrangement, due to weight/cal ratio) and protien, which are converted to glucose, then fed into the glycolysis furnace.
Not quite, my friend. TAGs or stored fats are converted to acetyl-CoA, which is downstream of pyruvate. Pyruvate is the endpoint of glycolysis. Proteins don’t feed into glycolysis readily. Rather they provide cataplerotic replinishment of TCA cycle intermediates...
Other than that, you got it all right...