I agreed with you that two or three best friends is perfectly okay for us because having one best sometimes can turn to enemy, where she may betray the trust you have in her. If we have two to three best friends it would make our life easier because if they gang against you at least one may stay with you forever because she would not let anything harm you. Too much friends is not also good as well and it would better to study and select the right best friends so that they can be with you through difficult situation. I wish you best of luck