I need inspiration to write a story, but since I'm still new to writing, I need tips from the experts too! [And nothing perverted please. I'm still a kid.

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Questions I would like to have answered, please:
1) What kind of enviroment is good for thinking?
2) What audience should I aim for? [Anime fans? Teenagers? Etc...]
3) What is the best way to start off a story?
4) What to do if a writer's block strikes?
5) Who to consult when I reach a section of the story I have problems with?