The students who study well are rarely the ones with the most dramatic plans. They are the ones with a small routine they can keep on a bad day.
Start with a block you can protect. Twenty five minutes, at the same time, in the same place. The goal for the first two weeks is not to cover a lot of material. It is to prove to yourself that the block happens no matter what. Once it feels automatic, you can make it longer.
Give each block one clear job before you sit down. Not study biology, but finish these six flashcards and write one paragraph on osmosis. A vague task invites drifting. A specific one tells you when you are done.
Protect the edges. Phone in another room, tabs closed, a glass of water within reach so you have no excuse to get up. The routine is only as strong as the first five minutes, so remove the small frictions that break them.
Finally, end on a note of progress. Write one line about what you learned or what comes next. It closes the loop, and it makes tomorrow’s block easier to start.