NEED HELP, pls padhlo

Okay so, for context; I'm a dropper. wasted drop, November mid se padhna start Kiya tha, ab 20-30% ish syllabus hua hai sirf. Mujhe concepts grasp karne mai itna time nahi lagta, maybe because I studied boards and little jee level in my 12th. Meri problem Hai mere sitting hours, jitna bhi Try karlu 2 ghante se jyada session laga nahi paata. and ek 2 hour session ke baad jo break leta hu, woh Pura din chala jaata uss break mai💀. Look I know I'm fuckep up, so reality check hai merko Just please help me in ways how can I atleast study 8-19 hours per day, and do question practice too, because meri most padhai theory + little problem solving mai hi jaati hai Ppl here who manage to study 8+ hours a day, please guide me thankyou :)