God has long been expelled from nature. If there is a God, it only comforts people in their hearts. The Superman that Nietzsche aspires to, or the Superman that he has achieved, I think is a different way of positioning. In the previous Christian world or in a general philosophical sense, people were looking for a truth (the God of Christ) outside of people to locate people, but what Nietzsche did was to use people to locate people, a person who fully develops himself, free and A healthy person does not need to bask in any glory.

My understanding of happy science: to understand science and serve mankind through epistemology, methodology and other human means, rather than studying science for something other than human beings (including ideas).

Nietzsche's theory he considered to be the air on high hills. People of the same kind will be deeply fascinated by the fresh air after seeing it, but mediocre people will be in danger of frostbite after seeing it.

I suggest you read Nietzsche’s views on reading.