How to get myself to study for more than 14 hours a day? Any motivation or concentration hacks

We all have problems to study for long hours in a day.This is my schedule to read around 13 hours in a day.(1) Wake up 4:45. Refresh and brush your teeth.(2) Start at 5 am.(3) First session 5am-6:30am(4) Take 15 mins break and start from 6:45-8:00(5) Take 15 mins and take bath