When I was at High School or at College, I needed complete silence to study. I would usually go to bed around 5-6 p.m. and last person at home to go to bed would wake me up. I would then study for 2-4 hours and go back to bed. This worked for me for years.
I am now semi-retired with a part-time job and whenever I need to work on a presentation or a report by myself, I find it so hard to concentrate at home. When I am alone, I procrastinate and when someone is around, I cannot concentrate. Strange huh?
So, I usually go to a coffee shop to work these days. I am still wondering why.