How to validate password using following conditions

Question

Password should contain

1. At least one uppercase letter
2. At least one lowercase letter
3. At least one digit
4. At least one special symbol
5. should be more than 4 character

I have tried - ^(?=.*\d)(?=.*[a-zA-Z])[a-zA-Z0-9!@#$%&*]{6,20}$