What is the nature of reality?
How do you know what's real?
How should we live?
I'm afraid you need to flesh these generic questions out.
I suggest you start by reading our philosphy guidelines https://www.physicsforums.com/showthread.php?t=47294
...otherwise your one-liner questions will get one-liner replies:
What is the nature of reality? Reality is whatever matters.
How do you know what's real? If it matters, it's real; if it's not real, it doesn't matter.
How should we live? Like Frank Sinatra: do it your way.
Im a transcendental realist who affirms deontology.
Reality is what we experience.
Everything I experience is real, although it may not be consistent.
The very best way we can.
Have a good time all the time. That's my philosophy, funcake.
Separate names with a comma.