unscientific said:
How can we be created out of nothing, let's say our parents created us, our grandparents created my parents so on and so forth.
Some say the universe is created by the big bang. Then what created the big bang? What created what? (<---i know this seems

but think about it; it makes sense)
Any opinion would be greatly appreciated.
Some of the greatest minds of history have brooded over this topic.
Aristotle found the idea of an infinite regression of causes, as you have suggested unwelcome. Whether because he was a Classical Greek and as Spengler would say, the secret of their thought was
completed form, or just personally, he was offended by it and so proposed an Unmoved Mover. An example of such in modern Cosmology woud be a Big Bang with everything else because of it, but it not itself because of anything.
Kant found BOTH the infinite regress and Aristotle's unmoved mover ridiculous (technical term: incoherent). He had no answer, but just noted this as an example of dialectic (two sides of an argument, you pays your money and takes your choice).
With one exception modern science has no answer for "what was before the big bang". The one exception is quantum gravity, a theory which is far from complete yet, but which two of its practicioners have used to propose "before the big bang" scenarios.
Martin Bojowald using a simplified "cosmological" version of LQG, one of the proposed quantum gravity theories, finds that it predicts a "mirror world", like the negative numbers going backward from zero, this world goes backward in time from the big bang.
And Lee Smolin proposes an evolutionary scenario which he claims is open to observational falsification. He conjectures that new universes are born in supernova collapses to black holes, and that selection would have favored universes that were rich in such actions, hence rich in stars, hence favorable to the evolution of life.