Reddit – Dive into anything

I study around 2-3 hours a day. Completing all my lectures, tutorials, making notes and such. After its all done, i still feel like i can barely remember much of what i just studied. I know how to do it in the moment but as soon as it’s done its gone. This is especially for the calculation problems. Some tests are coming up and I’m scared I’m gonna flop them.

Any tips on how to study more effeciently? I want to know how i can retain the knowledge i gained from studying.

(Full disclosure, i do often get distracted while studying. Whether it’s my phone or food. So i think that’s a factor in it as well)