Following might be helpful:-
Start with auditing your daily schedule and ensure that you have accounted for time required for each task, from bathing to eating and from sleeping to travelling…. once your audit is complete try following.
Create a space for studying. Ensure that you have enough space/ table/ chair soft board etc in your room. Keep the place clear/clean and cutter free. Ensure that subject that you plan to study on given day – all textbooks/ notes/ reading material/ reference material/ online help/ is available .
Create a study plan based on your class timings and time required for ADL activities.
Ensure that you are following a time table that you have created for self and there is NO/ minimal time loss… time pass
Ensure that you are away from your phone/ internet and other distractions if any applicable to you, while you are studying. It is advised to keep your phone/ distractions away from you.
Audit time, and allot time required for task and follow this meticulously.