Using continue and break statements in if and if else (in C code)

this is my first question on this "forum"(if you can call is that?). I started to learn how to code in C, but im stuck on a section where I am needing to use a continue and break statement within a if and if else. But it keeps giving me an error that I am unable to fix. Here is the code where I am getting the difficulties:

    {
    printf("\nPlease enter the total time for snail %d in seconds:", snail_numbers[0]);
    scanf("%d", &snail_time);
    int minutes = snail_time / 60;
    int seconds = snail_time % 60;
    printf("Snail %d finished in: %d minutes and %d seconds\n", snail_numbers[0], minutes, seconds);
    printf("Please enter the time, in seconds, it took snail %d to complete the first quarter of the race...\n"), snail_numbers[0];
    scanf("%d", &one_quarter);
    printf("Please enter the time, in seconds, it took snail %d to complete the second quarter of the race...\n"), snail_numbers[0];
    scanf("%d", &two_quarter);
    printf("Please enter the time, in seconds, it took snail %d to complete the third quarter of the race...\n"), snail_numbers[0];
    scanf("%d", &three_quarter);
    printf("Please enter the time, in seconds, it took snail %d to complete the fourth quarter of the race...\n"), snail_numbers[0];
    scanf("%d", &four_quarter);

    /*Tells user what league the snail has qualified for*/
    int total_minutes = one_quarter + two_quarter + three_quarter + four_quarter / 60;
    int total_seconds = one_quarter + two_quarter + three_quarter + four_quarter % 60;
    char user_confirm;

    if (one_quarter + two_quarter + three_quarter + four_quarter < 241)
    {
        printf("%d has qualified for the International Tournament, with a total time of: %d minutes and %d seconds\n", snail_numbers[0], total_minutes, total_seconds);
    }
    else if (one_quarter + two_quarter + three_quarter + four_quarter < 721)
    {
        printf("%d has qulaified for the National Race Meeting, with a total time of: %d minutes and %d seconds\n", snail_numbers[0], total_minutes, total_seconds);
    }
    else
    {
        printf("Snail %d has qualified for the Beginner's League, with a total time of: %d minutes and %d seconds\n", snail_numbers[0], total_minutes, total_seconds);
    }
    {
        printf("Please type 'Yes' if you would like to add more snails, or type 'No' to complete the entry of snails.\n");
        scanf("%c", user_confirm);
        if (user_confirm == "yes")
        {
            continue;
        }
        else if
            (user_confirm == "no")
        {
            break; 
        }

    }
}

It is at the bottom of this code section, any help would be greatly appreciated. :)