Code seems correct, but monster_turn only executes once and then player_turn every time after that

import sys

from character import Character
from monster import Dragon
from monster import Goblin
from monster import Troll


class Game:
    def setup(self):
        self.player = Character()
        self.monsters = [Goblin(), Troll(), Dragon()]
        self.monster = self.get_next_monster()

    def get_next_monster(self):
        try:
            return self.monsters.pop(0)
        except IndexError:
            return None

    def monster_turn(self):
        if self.monster.attack():
            print('{} attacks you.'.format(self.monster))
            if input("Dodge? Y/N: ").upper() == 'Y':
                if not self.player.dodge():
                    self.player.hit_points -= 1
                    print("Dodge failed! You lost 1 hit point.")
                else:
                    print("You dodged {}'s attack!".format(self.monster))
            else:
                self.player.hit_points -= 1
                print("{} hit you for 1 hip point.".format(self.monster))
        else:
            print('{} attack failed.'.format(self.monster))

    def player_turn(self):
        action = input("What would you like to do? [A]ttack, [R]est, [Q]uit").upper()
        if action == 'A':
            print("You're attacking {}!".format(self.monster))
            if self.player.attack():
                if self.monster.dodge():
                    print("{} dodged your attack!".format(self.monster))
                else:
                    if self.player.leveled_up():
                        self.monster.hit_points -= 2
                    else:
                        self.monster.hit_points -= 1
                    print("You hit {} with your {}!".format(self.monster, self.player.weapon))
            else:
                print("You missed!")
        if action == 'R':
            self.player.rest()
        if action == 'Q':
            sys.exit()
        else:
            self.player_turn()

    def cleanup(self):
        if self.monster.hit_points <= 0:
            self.player.experience += self.monster.experience
            print("You killed {}!".format(self.monster))
            self.monster = self.get_next_monster()

    def __init__(self):
        self.setup()

        while self.player.hit_points and (self.monster or self.monsters):
            print('\n'+'='*20)
            print(self.player)
            self.monster_turn()
            print('-'*20)
            self.player_turn()
            self.cleanup()
            print('\n'+'+'*20)

        if self.player.hit_points:
            print("You win!")
        elif self.monsters or self.monster:
            print("You lose!")
        sys.exit()


Game()