Preparation for Interview

I still have two more days to prepare for the job interview this Friday.
Yesterday, I spent four hours to prepare for it after work.
The gym which I am a member of is the best place for preparation.
It has free Wi-Fi and a relaxation room which allows the members to use freely.
I was in the room from 6:30 p.m. to 10:30 p.m.
I made Power Point slides, so I will ask some people to check and give me feedback today.
The mock lesson is only for 20 minutes, but I will focus on it to pass the interview.