Begin rescue retry error

If this code runs the "else" statement, I want it to retry from "rescue" or from "begin", i don't mind. Runnig the code ask me for an input and, when I put it, it doesn't work.

1- What can I do to make this code work with the else statement running the "retry"?

2- Eliminating "rescue" creates a "retry Syntax Error" Why?

# Creates input method
def input
  x = gets.to_i
end

#Begins the first choice
begin

  puts "What will you do?
  1- Get a closer look
  2- Go in the opposite direction
  Write your input an press enter:"
rescue
  #Calls input method
  choice = input
  if choice == 1
    puts "You get a closer look and..."
  elsif choice == 2
    puts "You go in the opposite direction, out of trouble"
  else 
    puts "Incorrect input, enter a number between the one's avaliables:"
  end

  #Retries if the choice is error
retry if choice != 1||2
end

THANKS!