What is the SixBillionTheory?

Damn, been reading over this and its amazing how little i have written in such a long period of time. Well, Junior year is over and yes I cant believe im going to be a senior. What the hell...I'm practically an old man. Life still freaks me out crazily. I have no idea what i want to do for a career. My whole life i've thought i would become an engineer of some sort. Its what my brother is doing and what my cousin does. But lately i dont want to do it. The career just seems so empty and unsatisfying. I need a job that i feel makes a difference. Theres a million people who are engineers, and i dont want to get loss in the masses. It would be like a waste of a life. Thats the other old and recently renewed inner conflict in my life; Should i live a life serving my fellow man or should i just live life to the fullest for myself. The latter would be the easier and seemingly "funner" choice. But i've never been the type to indulge in the short-term rises. I've always strived for the meaningful, fulfilling experiences. Im definitely a big picture man. Seeing things in terms of the greatest good and the highest overall happiness. I could easily follow a lucrative career path as say a plastic surgeon, making half a million dollars a year. But somehow i dont think i would be fulfilled by it. I'm just seriously in need of some "I" power right now. Inspiration or Insight. Either will do. I just need to believe in something again. Nothing seems real as of the moment and i feel off track...Where is my motivation? Its a big world and it must be lost in it just as i am. Being in the depths sux...