RE requires a license (time and money) and connections to work for a reputable agency. Although its a possibility with a lot of upside I'm not sure it's the best place to get started in sales.
Anyway, sales is such a huge field that there's no one right place. OP has to narrow it down: does he want to do retail sales? business-to-business sales? is he inspired by the glamour of the movies Wall Street or Glengarry Glenn Ross (because sales is NOT that exciting as portrayed in the movies, it's mostly a lot of complete nonexcitement)? We need more specifics.
Anyway, sales is such a huge field that there's no one right place. OP has to narrow it down: does he want to do retail sales? business-to-business sales? is he inspired by the glamour of the movies Wall Street or Glengarry Glenn Ross (because sales is NOT that exciting as portrayed in the movies, it's mostly a lot of complete nonexcitement)? We need more specifics.