Good grades are rarely about being smarter. They are usually about running a system that makes studying predictable. When college gets busy, motivation comes and goes, so you need habits that still work on low-energy days.
The first rule is to study for recall, not recognition. Recognition is when you read notes and think you understand. Recall is when you close the notes and produce the answer anyway. Exams reward recall and application, so your practice should match the test.
Turn every lesson into questions. After class, write 10 to 20 questions for the topic and answer them without looking. If the subject is problem-based, convert notes into a small set of representative problems and solve them from scratch. This immediately reveals what you do not know.
Use spacing so you do not relearn everything from zero. A simple pattern is: learn today, quick review tomorrow, then a mixed review one week later. Your reviews can be short; the point is repeated contact over time, not marathon sessions.
Mix topics on purpose once you have the basics. If you only practice one type of problem at a time, you become good at the pattern, not the decision of which method to use. Mixing forces you to choose, and that is what exams usually measure.
Plan around grade drivers. List how your course grade is computed and allocate time accordingly. A subject with weekly quizzes needs frequent short practice. A subject with a heavy final needs spaced review. A project-heavy course needs protected build blocks.
Create a minimum viable study session for days when life happens. For example: 10 minutes of question recall, 5 practice problems, and a two-minute summary from memory. This is small enough to do consistently, and consistency compounds.
Take notes for future you. Do not write transcripts. Write cues and prompts you can quiz yourself on later. If your notes do not help you generate answers, they are not study tools; they are archives.
Manage your calendar like an adult. Protect exam weeks by reducing optional commitments and front-loading tasks. If you are active in orgs or building projects, treat those as flexible during assessment weeks. You can be ambitious, but you cannot be everywhere at the same time.
A simple weekly rhythm works for most students: Monday to Thursday, do short recall sessions per subject; Friday, do a mixed review; weekends, handle long-form work like labs and projects. Every Sunday, spend 15 minutes planning the next week so your schedule does not plan you.
If you want a fast upgrade, add office hours and peer review. One hour of targeted clarification can save five hours of confusion. And explaining a topic to someone else is a brutal but effective test of whether you actually understand it.
Grades are a lagging indicator of process. Build the process: recall practice, spaced review, mixed problem sets, and protected time. If you keep that running, your grades tend to follow.