I was trying to do runs for all quests back to school and I was having difficulties with the locker section. For the part, I was at I was attempting to go to a locker that would put me into the deans office, however none of the lockers I was trying were working. I watched the WR and Riekelt gets it on his first attempt. Is there any way to guarantee it that I'm missing or do you just have to get really lucky? If anyone knows how they work I would love to know. Thanks!

Even I don't get lucky all the time. I copied someone of YT, and it's hit or miss.