Touch stopped working and a week later screen doesn't work

A week ago my phone touchscreen would intermittently stop working, I found temporary fixes in popping my screen off and holding at certain angles, making me think it is damaged wiring on the connection cable itself, but last night when readjusting my screen the touch didn't come back on, and this morning no matter how I reconnected my screen, the screen wouldn't even turn on. Though when I go to restart I can feel the phone vibrating so I know it's on. If I could get an answer that hopefully doesn't mean a whole new replacement screen, again, I would be very grateful. I'm hoping to hear back soon, because my college education system uses a two step authentication that only goes to my phone and on campus IT support is down for spring break.