If you continue to ask questions that you can't get the exact answer to, only educated guesses or using logic deduct your own conclusion, do you continue to ask the questions or do you move on so that you don't go crazy?
The questions have all been asked and answered so many different ways by so many different people over thousands of years. Every culture and religion has it's own set of answers, none of which are absolute because no one can prove their answer is correct.
That brings me to: If you can't get the perfect answer, why continue to ask the question?
Why not decide that life is limited, we are finite, we have 80 years to make something of this life and concentrate really hard on LIVING life instead of questioning it. Delve into the facts, like science, study the facts we do know about life, learn what the meaning of love is, find a hobby that you enjoy, learn a skill and challenge yourself, get friends, explore this world we call a home. Maybe the answer is that we just need to make the best out of this life and quit trying to understand it and explain it all the time. Maybe there is no answer possible.
In algebra there is the impossible, the square root of negative 1 is i. Yes, the letter i, for IMAGINARY. That is like our guesses, they are imaginary. Maybe there is no perfect answer.