My Future Self

I would have liked to meet my future self and listen to my advice. What would I tell my present self? Study more? Be more active? Or don't waste your time on having fun? Or vice verse?
Is there my future self anyway? Haha, is time travel even possible?
Last night I was thinking about how a man is lonely in this world. The only similarity in people is that they are different. My previous theory about life - that you are born to have fun - fails to work now.
My thoughts now are pretty random for I'm ill. Damn these colds that never will come to an end. I would be happy to be born as an AI. I personally think that every plot where AI self-destructs is lame and untrue. I mean, people have that power of self-destruct, too. But there is still few who does that. Why should AI do that? Oh, don't tell me it is because of loneliness.
I am a gloomy person and I make people around me unhappy. Oh boy, there are not a lot of people around me, but still I do not bring them happiness. Should I change myself? Or should I tell the world that I am who I am. Who am I then? Oh my. At least I'm trying to be honest all the time.