Ritualise your study routine
When we are born, one of the first things our parents do is try and get us in to a routine around our eating and sleeping patterns, usually resulting in a ritual of some kind, especially around bedtime. An example of this may be after a bath we have a story read to us, a bottle, and then bed. These 'cues' or 'triggers' repeated over and over get us used to these specific rituals so that when, for example, we have a bath at night, we will know what follows.
These rituals can also be very useful when you are studying, especially if you tend to procrastinate or struggle to settle down to your daily homework. Perhaps a routine may be of use??
There are many things that you can do to set this ritual up.
Here is an idea of what it might look like:
This is just one suggestion.
Make a study routine that best suits you and your study priorities and goals.