What is the meaning of life?
This is a question many of us have had and many have philosophized about. There is no correct answer to this question, rather answers describe a lifestyle that could be seen as meaningful in society.

For example in 2014, the British National Health Service began recommending a five-step plan for mental well-being based on meaningful lives, whose steps are:

- Connect with community and family
- Physical exercise
- Lifelong learning
- Giving to others
- Mindfulness of the world around you

Note that this is _one_ way of living a meaningful life. Other cultures can have different views on this, and the meaning of life can differ from person to person as well.
But if the meaning of life can differ per person and culture, as you say, then isn't that equivalent to just saying: I don't know, just make something up?

That seems incredibly depressing to me... I think I would be very relieved to discover that all the struggles and suffering of life has value beyond the mere experience itself.
People have been struggling with this question for as long as they have been writing. It is beyond me to provide an adequate answer that would settle it once and for all.