Welcome to RF, we are an odd bunch here (although i can only speak for myself) so the answers to your question may seem unreal in some cases. Mine for example come from my atheist mindset
1. The question of origin. How does your belief define where we came from?
From my mothers womb, in the wider sense we evolved from ape like creatures?
2. The question of meaning. What is the meaning of life according to your worldview?
I don't think there is any meaning other than to do the best you can with the life you have got.
There was once a computer that spent seven and a half million years to calculate a similar question. "Answer to the Ultimate Question of Life, the Universe, and Everything"
The result was 42
3. The question of morality. What does your worldview say about moral truth?
Morality is a human trait, without it no civilisation could flourish to the extent that it was able to form religions who could claim morality as their own and reject anyone who didn't follow their religion as immoral.
4. The question of destiny. What happens after death according to your worldview?
Ahh, an easy one, here is the quick version. At death brain function ceases, organs begin to deteriorate. Eventually we break down into our component molecules and atoms. The law of conservation of matter ensures that our components are reused. In the future atoms and molecules that are what you are before death will go to create new stuff, a blade of grass, a tree, a worm, another human being, In that way we are all made of dead people. Much further in the future some of those atoms may help power a new sun which shines down on a new planet and help life to get a foothold there.