Chosen Solution

Okay so I was stupid for doing this and it was my first time messing with apple watches internally. I was following ifixits guide but was scanning through and didnt see that the cellular watches battery connector is in a different spot so i unplugged the screen while the battery connector was still plugged in(the watch was turned off) and then i may have slighty scratched the surface of the screen connectors when trying to pull them out but I dont know if this actually affects them or not(its just a small scratch on the cable), but know the screen wont turn on at all and I just feel it vibrating and stuff, what do you think happened to it? Thank you in advance!

The most likely issue, if all of the ribbon cables have been properly seated back into their connectors, is that a ribbon cable was damaged.