Não consigo colocar "Tentavivas" em código C

Boa Tarde galera. Este e o meu primeiro post aqui no forúm e estou tentando colocar uma variável com números de tentivas para o usuúrio do programa, mas ainda nao de muito certo:

#include <cc50.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main (void)
{

 srand (time(NULL));
 int user_number, skittles, attempts;
 skittles = rand() % 1024;
 attempts = 0;

 printf(" Hello! I am a machine bullets speaker! Guess how many skittles have with in me. Hint: I am thinking of a number between 0 and 1023. What is it?\n\n");

 for (attempts == 0; attempts == 10; attempts++)
 {
 do
 {
 printf("Enter you estimative of skittles: ");
 scanf("%d",&user_number);

 if (user_number == skittles)
 printf("\nCongratulations!You hit the amount of skittles which is %d\n",skittles);
 if (user_number > skittles)
 printf("I have less skittles. Please try to hit again!\n");
 if (user_number < skittles)
 printf("I have more skittles. Please try to hit again!\n");
 if (user_number > 1023 || user_number < 0)
 printf("Learn to play!Enter a valid whole number(0-1023)!\n");
 }
 while (user_number != skittles);
 }
 return 0;
}

O que está errado?