Well excessive use of phone can damage you...
Start practising yoga and meditation it will help you to improve your concentration power!!!
Studies r important than him... Ur career is important...
Make a routine for your study... Fix ur time for studies... Focus on your career... That's what important... Still if u feel easy ... Girl ! Pressurize urself ... 🔥
Try studying with a friend as this will help you to discuss more about studies and your exams instead of thinking about ur boyfriend...!
Try to make a routine and ask your mom or sibling to help you in having a restriction over screen time
Getting yourself engaged in other activities.