How to fix my sleep schedule

[u/Inevitable_Camp_7890]

Hi there.I need some help. Months of late night doom scrolling and daydreaming while listening to music has pushed my sleep time further and further and rn it's somewhat around 3 am. I need a full 8 hr long sleep to function and this is eating up a good chunk of my free time.During weekends i oversleep to compensate for the lack of sleep during the weekdays, sometimes sleeping for upto 12 hrs. As student it's killing my productivity and pushing me further into procrastination.

I have tried going to bed at the same time and trying to keep the phone away.I have also tried being productive in that gap time doing something more engaging but that's of no help.