Mysql login error

Hello,

i recently followed some instructions on PHP and MySQL web development after which i can no longer login to my MySQL database server any more. please find below what i did .........................................................................................................................................
+--------------------+
| Database |
+--------------------+
| information_schema |
| books |
| cdcol |
| mysql |
| nig_soil_db |
| nig_soil_db_new |
| performance_schema |
| phpmyadmin |
| police_records |
| student_record |
| test |
| webauth |
+--------------------+
12 rows in set (0.12 sec)


mysql> grant all on * to mike identified by 'miko'
-> with grant option;
Query OK, 0 rows affected (0.23 sec)

mysql> grant usage
-> on books.*
-> to sally identified by 'magic123';
Query OK, 0 rows affected (0.06 sec)

mysql> grant select, insert, update, delete, index, alter, create,drop
-> on books.*
-> to sally;
Query OK, 0 rows affected (0.00 sec)

mysql> grant select, insert, delete,update
-> on books.*
-> to bookorama identified by 'bookorama123';
Query OK, 0 rows affected (0.00 sec)

mysql> quit;
Bye

C:\xampp\mysql\bin>mysql.exe -u bookorama -p
Enter password: ************
ERROR 1045 (28000): Access denied for user 'bookorama'@'localhost' (using passwo
rd: YES)

C:\xampp\mysql\bin>mysql.exe -u bookorama -p
Enter password: ************
ERROR 1045 (28000): Access denied for user 'bookorama'@'localhost' (using passwo
rd: YES)

C:\xampp\mysql\bin>mysql.exe -u bookorama -p
Enter password: ************
ERROR 1045 (28000): Access denied for user 'bookorama'@'localhost' (using passwo
rd: YES)

C:\xampp\mysql\bin>mysql.exe -u root -p
Enter password: ********
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: Y
ES)

.........................................................................................................................................

Please i need help