try reframing it as 15 minutes of work then an hour break  when i give myself i tiny window to work i seem to work really fast  if im watching a series or youtube videos i give myself 15 minutes between each one  i get everything done easily because the reward is so near  most of the time i can do everything within 30 minutes of actual work    sometimes i get enthusiastic about what im doing and work longer than 15 minutes sometimes the productivity can run for hours  if im putting off a big task i pretend im going to do a worse one like clearing out a cupboard  i take the cleaning stuff out open the cupboard and before you know it ive diverted my attention away to a lesser task the one i was actually supposed to be doing in the first place  these are my methods they might work for you or you might need to tweek them to make them work or you might need to create your own ways to trick your brain into working  theres also times when you might be high functioning and times when you might be low functioning  go easy on yourself when nothing works and when it does do as much as you can  if nothing works i take a day off to do nothing and usually i get bored and find stuff to do the next day  i treat it like ive got a cold or a sickness and eat comfort food and watch whatever i want for a day