You have been provided with elbow crutches to help you walk safely whilst allowing you to protect the injured leg. It will take a little time to get used to the crutches and so it is important you try not to rush.
Underarm crutches are generally used for people recovering from an injury or surgery. They’re typically used for people who will only need them for one to three months. They take less upper body strength and body control than forearm crutches.