I admire your forthrightness, and your ceaseless searching for answers.
Unfortunately, my dear, the questions that you are asking are the very same questions that men and women have been asking since we first came out of the caves at night at looked up.
Looked up into the infinite blackness that is the boundless universe, and wondered why? Wondered what those winking lights that seemed to hang just out of reach.
The question you have asked is a matter of faith. Some people will tell you that YES, there is absolutely life after death. Other people will just as strongly inform you "NO", ther is no such thing as life after death.
And, the vast majority of people, just like you and me, wonder.... could there be? is it so? maybe...?
My faith, excuse me, my BELIEF is that there is indeed a continuation of self after death. Not quite the same as what we have here, in fact, almost indescribable in human terms. While I do not look forward to the death of this body, it does not frighten me either. It could be because I've been here quite a while, about 3 times longer than you, and I've learned many things both good and bad.
I am worried about my family, my wife and my daughter, and how they will deal with my absence. But I am not sad for that either. Because, when all is said and done, we will all go home again.
I know I haven't given you the answer you had hoped for, wither "yes" or "no", but I can give you a piece of advice: Learn all you can. Listen to what people have to tell yo. Continue to ask your questions, and form your own opinion. And most importantly: Enjoy the journey.

good journey