Take breaks often. This will help you stay focused and avoid burnout. Get up and move around every 20-30 minutes, or take a short break to do something you enjoy.
Use active learning techniques. This means participating in class, asking questions, and taking notes. It also means trying to teach the material to someone else.
Eat healthy foods. Eating a healthy diet will give you the energy you need to study and learn. Make sure to eat plenty of fruits, vegetables, and whole grains.