Basic Python RPG combat

Hey ya'll I'm brand new to python/programming and have been doing some online courses. I decided to take the day off of taking notes and such and try to challenge myself with some random while loops that simulate different things in dnd. I'm currently stuck on my simulated combat, and I know I'm on the right track but obviously it's not working. Some pointers would be much appreciated.

import random


monster_hp = 25
strength = 5
ac = 17
hp = 25
combat = True
current_hp = monster_hp
dmg = 0
hit = False


def roll_to_hit(hit, ac):
    hit = random.randint(1, 20)
    return hit
    if hit >= ac:
        return True

# print(roll_to_hit(hit))


def roll_4_dmg(dmg, strength):
    dmg = random.randint(1, 10) + strength
    return dmg
    print(f"You hit and did {dmg} damage.")


# print(roll_4_dmg())


def damage(current_hp, monster_hp, dmg):
    current_hp = monster_hp - dmg
    return current_hp


# print(damage())


while combat:
    if current_hp > 0:
        inp = input(r"A monster has appeared what will you do? ").lower()
        if inp == "attack":
            roll_to_hit(hit, ac)
            if True:
                roll_4_dmg(dmg, strength)
                damage(current_hp, monster_hp, dmg)
            else:
                print("You missed!")
                inp = input(
                    r"A monster has appeared what will you do? ").lower()
    else:
        print("You have slain the beast!")
    break