Ender 3 V2 Neo Help

[Kharthus0716]

Hello, I only just got the Ender 3 V2 Neo, and I've been having a lot of trouble calibrating and getting it to work properly. I got the printer used, so that might have something to do with it.Things don't want to stick to the build plate, and the string of the Filament doesn't wanna stick properly either to itself, or to the build plate. The pieces loaded onto the memory card that came with the printer immediately delaminated, and basically fell apart as soon as they were off the plate. I am becoming more and more frustrated as things begin to go well, and then quickly fall apart. Attached i will have pictures of the latest thing i created. Its a dice holder i found online, that turned out better than anything else i made, aside from a configuration cube i made. The issue is that one side of each of them is nearly a 16th of an inch higher than the other side, which i assume is a levelling issue, I've tried levelling the printer again, both manually, and automatically. Any assistance would b appreciated.