The total energy of a particle executing simple harmonic motion is:

Total energy $E=\text{Kinetic Energy}+\text{Potential Energy}$.In SHM:
$$E=\frac{1}{2}m{\omega }^2(A^2-x^2)+\frac{1}{2}m{\omega }^2{x}^2=\frac{1}{2}m{\omega }^2{A}^2=\frac{1}{2}k{A}^2$$
Where $A$ is the amplitude. The total energy depends only on mass, frequency, and amplitude. It does not depend on the instantaneous displacement $x$.