Learn the sky with the naked eye. Astronomy is an outdoor nature hobby. Go into the night and learn the starry names and patterns overhead. Other books and materials will fill in the lore and mythology of the constellations the map shows, and how the stars change through the night and the seasons. Don't rush to buy a telescope.
Many hobbies require a big cash outlay up front.
But astronomy, being a learning hobby, has no such entrance fee. Conversely, paying a fee will not buy your way in. Thinking otherwise is the most common beginner's mistake. They assumed that making a big purchase was the essential first step. It doesn't work that way.