1⃣ Give ur phone to smone and tell to don't give until u finish *⃣ If u wanna music use pc or other thing 2⃣ 30min study 10-15 min rest *⃣ this help u to memorize it easily 3⃣ revise before starting after rest. If it is for entrance or other exam use d/t method for d/t sub 1⃣bio,his..... theory parts Do exam sheets a lot before studying This helps u to foces on the place that u have to study. 2⃣math,phy....... calculation parts Study the theory and formulas(don't take much time to meshemded) Then do a lot of exercise that helps u to memorize the formulas Ps: if u r not in mood try to think about the future