OK, so another thing I've been pondering is how your perception / view of the world / how your see yourself and others, is uniquely shaped by your genetics, the country/culture/family background you grew up in, etc. Also how opportunities that are available to you is at the same time limited by this.
It is kinda amazing that you're given more or less 80-90 years to live in this "shell" that you did not even choose to begin with. You're just given it. It's kinda like being in a racetrack whereby somebody might have like a 10 min. head start on you, and somebody else might have like a 30 min. delay. Somebody might have to work their whole life just to get to the same place that somebody else started with.
I'm not questioning the fairness of it all, I just find it interesting. Also whether the world would be a more peaceful place if everyone spend a bit of time each day pondering these differences.
For myself, I don't believe we come into this life with no past. Rather, we come as we are, as we have chosen to be through perhaps millions of years of existence. This life is in a larger sense, a school. Some take a smaller view, calling it a test. If it's a test, we indeed get to make changes along our way, and learn from our experiences.
Rumor has it, we were children of a Heavenly Father, and met in a great council to hear the plan for this world. Our Father called for one of us to become our leader, and Lucifer. . . . a Son of the Morning. . . . one of the older and smarter ones among us, jumped up to volunteer. He said he would make us all be good, and bring us all back home in perfect condition. Lucifer said he would make sure we all did good, and said because he was smart enough to do all that, of course he would be great, and of course he would be glorious and worthy of all praise. God asked for another volunteer. Jesus stood up and said he would do whatever it could take to bring us home if we would choose. He said we should be free, and make our own decisions, right or wrong, and that if we made mistakes or did great evil, He would give himself a ransom for whoever would choose to come and ask for forgiveness, and he would pay the price. Jesus said he would do whatever our Father required, and that all glory should be the Father's. God said OK.
So here we receive a physical life, a body in the image of God, as children of God. We are placed in a circumstance where we can learn about the physical world, where we have a clean slate to start again as we may choose in our spiritual progress, unhampered by the past. In a way, it is a school where we receive a second chance, under significantly different circumstances. And we get to choose everything all over again, with no forced or threatened choice.
We may be in different states of progress, but while we are here we can make what progress we choose or seek, and in the end, hopefully, we may achieve something we could not have done in other circumstances.
Our years or time may vary as other circumstances, but the one essential achievement is the gift of life, the gift of a physical body which will be ours thenceforth forever, barring some extreme offense in rejecting great knowledge in rejecting further life with God, perhaps preferring Lucifer after all.
Rumor has it about a third of God's children went that way from the Council in Heaven, and some may yet be added to that number. . . .