Philosophies of an Adolescent

Dressing in a particular way often cheers me up. So this morning, waking up feeling slightly dodgy, I decided I'd well and truly welcome summer with hawaiian shorts and flip flops.
After flip-flopping my journey to school, and arriving with sore feet, I was in no better mood. In my own mind I often feel neurotic and paranoid; perhaps where the deep thoughts I harbour stem from...

If I see someone for the first time, but they don't see me, I don't exist in their mind. If I don't exist in their mind then surely my existance can be doubted, as every conscious being cannot say to me "You exist." If you are reading my musings, then I exist to you. However, if you do not comment, then you do not exist in my mind. Not existing in my mind would leave your existance unwhole.

Food for thought....

My final, and perhaps bizarrely hedonistic and adolescent philosophical theory:
Our chances of being conceived are set at infinity to one; if my great-great-great grandfather had not got home from school on time one evening, missed his tea, then been kept in by his mother on the night that would have met my great-great-great grandmother, then I (and my entire family tree) would not be alive. I happen to think that my family are all fantastic people; and so if the opportunity for conception was denied, then so would the potential for thousands of children. Therefore shouldn't every opportunity for dating/conception be taken?
Perhaps this is close to Catholic doctrine...perhaps closer to the workings of an adolescent male mind; however I want you to think that if the first two humans had put off mating of an evening to play backgammon; would the world be the same today? Would YOU be alive?