Self-directed learning (SDL) is a popular educational model that allows students to learn at their own pace, with or without guidance from a teacher. However, SDL can be difficult to implement and can lead to a number of problems that educators must address.

1. Lack of Structure: SDL can be chaotic and unstructured, which can lead to difficulty in learning.
2. Poor Planning: SDL often does not follow a predetermined plan, which can lead to difficulty in learning.
3. Inability to Take Notes: Many students find it difficult to take notes while learning SDL, which can lead to difficulty in recalling the information.
4. Lack of Independence: Many students feel as if they are not able to learn SDL independently, which can lead to frustration.
5. Difficulty in Adjusting: Many students find it difficult to adjust to the new learning environment, which can lead to difficulty in learning.