Please correct my sentence

<p>It isn’t that my father, in my early adolescence, worked repairing hospital equipment, or that I was introduced to wires, circuit boards, and soldering irons early in life, It isn’t that I’ve taken a plethora of physics, advanced mathematics, computer programming classes, or even four years in an engineering magnet program, the reason that I aspire to become an engineer isn’t because it’s simple or that it comes naturally to me; it’s because I have always held a strong conviction that the future of humanity goes hand in hand with our advancement in technology. </p>

<p>I’d like to keep it more or less in that order with similar, but correct, punctuation. Your help is appreciated.</p>

<p>It isn’t because my father used to repair hospital equipment and introduced me to wires, circuit boards, and soldering irons early in life. It isn’t because I’ve taken a plethora of physics, advanced mathematics and computer programming classes in the engineering magnet program I attend. It isn’t even that engineering is simple and comes naturally to me. The reason I aspire to be an engineer is because I am firmly convinced that our future depends on technological advancement.</p>

<p>It isn’t because my father used to repair hospital equipment. It isn’t because I was introduced me to wires, circuit boards, and soldering irons as a child. It isn’t because I’ve taken advanced math and science courses at the engineering magnet program I attend. It isn’t even because engineering comes naturally to me. The reason I want to be an engineer is because I believe our future depends on technological advancement.</p>