DEV C++ DIRE NEED OF HELP

[deleon123]

Hello Guys, I know this is too much to ask for but not getting sleep for 3 days is also too much for me. We have been assigned to make a dev C++ proj but I dont have any idea about it. Please help me create a program with these basic functions
My portfolio
User 3 trials
Enter your name :
Enter your password:
Invalid user name and pass
You only have 2 trials
Do you want to try again <y/n>?
Sorry you have reached the maximum trial .

MAIN MENU
Choose the letter for each topic to view some sample programs.

Basic C++
a.Variables
b.Constants
C .Operator
D basic input/output
Control structure
E.control structures
Compound data type
F .arrays
G.exit
Please choose the letter
You choose ___

1.system color
2.sleep
3.Cls
4.Clrscr
5.exit function

any answer would be so much appreciated :( I am starting to lose hope deadline is near if anybody could help me with this it's my savior. Thank you :(

  
#include<iostream>
#include<string>
#include<stdlib.h>
#include<conio.h>
using namespace std;
int main()
{  
   system ("color 7");
   cout <<"        ****************************************************************      " <<endl;   
   cout <<"        ****************************************************************      " <<endl;  
   cout <<"    *******************     ***     ****     ***     *********************    " <<endl; 
   cout <<"***********************   **  **    ****     ***     *************************" <<endl; 
   cout <<"***********************   **  **    ********     *****************************" <<endl;  
   cout <<"***********************   ******    *********   ******************************" <<endl;   
   cout <<"***********************   ******    *********   ******************************" <<endl;   
   cout <<"******************************************************************************" <<endl;  
   cout <<"******************************************************************************" <<endl;
   cout <<"******************************************************************************" <<endl;   
   cout <<"**     **     **        **        **      **      **   *****   **      *******" <<endl;  
   cout <<"**  ** **     **   **   **        **  ******      **   *****   **      *******" <<endl; 
   cout <<"**     **  ** **     *******   *****      **  **  **   *****   **  **  *******" <<endl; 
   cout <<"**  *****     **   **  *****   *****  ******      **   *****   **      *******" <<endl;  
   cout <<"**  *****     **   ****  ***   *****  ******      **      **   **      *******" <<endl;   
   cout <<"******************************************************************************" <<endl;   
   cout <<"******************************************************************************" <<endl;  
   cout <<"******************************************************************************" <<endl;
   cout <<"******************************************************************************" <<endl;
   cout <<"      ******************************************************************      " <<endl;
   cout <<endl;
   cout <<endl;
   
   
   string username;
   string password;
   char c;
   int attempts = 0;
   
  
  for  (int attempts = 0; attempts < 3; ++attempts )
  {
   START:
   cout <<"                               User has 3 trials" <<endl;
   cout <<"                    Enter Username: ";
   cin >>username;
   cout <<"                    Enter Password: ";
    char pass[32];
   int i = 0;
   char a;
   for (i=0;;)
   {
   	a=getch();
   	
   	if((a>='a'&&a<='z')||(a>='A'&&a<='Z')||(a>='0'&&a<='9'))
   {
   	pass[i]=a;
   	++i;
   	cout<<"*";
   }
   if(a=='\b'&&i>=1)
   {
   	cout<<"\b \b";
   	--i;
   }
   if (a=='\r')
   {
   	pass[i]='\0';
   	break;
   }
}

    if (username=="1234" && password=="12345")
        {goto loop2;}
    else
   
                
   
    loop: 
         cout <<"                    Invalid input you only have 2 trials left";
         cout <<"                        Do you want to try again (y/n)?" ;
         cin >> c;
         ++attempts;
         switch(c)
         {
         case 'Y':
         case 'y':
         goto START;
         case 'N':
         case 'n':
         break;
         default:
              
         cout <<"                     please choose only <Y,y> or <N,n>\n";
   
          goto loop;
          }
}
   
   
       
          system("cls");
   loop2:
   string answer;             
   cout <<"                             MAIN MENU\n";
   cout <<"\nchoose the letter for each topic to view some sample program: \nBasic in c++: ";
   cout <<"          \n a.variables";
   cout <<"          \n b.constant";
   cout <<"          \n c.operators";
   cout <<"          \n d.basic input/output";
   cout <<"          \n e.control structure";
   cout <<"          \n f.arrays";
   cout <<"          \n g.Exit" ;
   cout <<endl;
   cout <<endl;
   cout <<"Please Enter the letter you choose: ";
   cin >> answer;



   if(answer == "a")
   {      
          system("cls");
   string variable;         
   cout <<"VARIABLE in C++ is name for a piece of memory that can be used to store informa-tion" <<endl;
   cout <<"          \n a. identifier, data types, declaration, and introduction of variables";
   cout <<"          \n b. introduction of strings";
   cout <<"          \n c. go back to main menu";
   cout <<"          \n d. Exit";
   cout <<endl;
   cout <<"Please Enter the letter you choose: ";
   cin >>variable;
                 
                    }
                    
                    
   if(answer == "b")
   {
   string constant;
   cout <<"CONSTANT expression with a fixed value" <<endl;
                    
   system ("pause"); }
                     
}

              
}
   
   
   
 return 0; 
 system ("pause");  
}