Has anyone ever played Rugby before?

Question

I am a rookie player and I want to understand the rules better. I never played in a game and I am starting to ge tthe hang of the practices. In the past I ran track and X-country and I was decent at it. Can someone explain the rules and how the game is played for my sake please? I have done research on the game and I am still a little lost. I am always asking questions about the gaem because I am fairly new to it.