Ender 3 v2 - first prints need help

[hook13]

Just got my ender 3v2, first printer, no experience-Not sure what if I built correctly and not sure everything is moving around axis like it should, might need to re-assemble- When I first built and used auto home it pressed down on glass very hard, and I moved the nozzle, dragging it on glass making it worse..., could I have damaged it? I thought I had it leveled, and first layer / bottom I thought was going ok, but the 20mm test cube printed smooshed, does this look like a build issue or leveling issue? Not sure where to start. Using the filament that came with it (have some polaroid coming today), and it seems brittle, keeps breaking off-Any suggestions on what to do would be greatly appreciated, the prints are definitely sticking, maybe too much?