how to create a game

Answer 1

while not gameCreated:
justCoding()

Answer 2

A good library for 2d games is pygame

Answer 3

It's a bit hard. Try google and see if you find any open-source projects. You need to make tons of classes and subclasses, and make tons of methods.

Answer 4

You can do it with Ren'Py, if you want something like visual novel. It's not bad for beginning.