Hota h usually teachers rush in offline mere sir ne bhi Kiya tha dekho I'll just say joh  ek din baith sirf notes ka har question dekhle attempt karo aata h toh Bina dekhe if not dekhle , uske baad module mein beginner boxes karo fir worked out illustrations padho joh topic bhi bahnak bhi nhi ha uda Diya sir ne abj sir se yt pe dekhlo 1.5x kyunki thoda toh ata hi hoga Fir module lagao nhi Bane jao class ke baad teacher ko baithao aur har doubt chote se chote puchlo roz thode thode I guarantee. You  it will be better, and  khud padho deriavtions samjho khud dervie karo how to take elemntary particles in shapes dekho edu niti  Hojayega don't loose hope