I am a A-level student studying maths, physics and computer science. I own a Creality Ender 3 V2 and am reasonably proficient with it. I mainly print decorative pieces (often for my younger brother's homework projects) but have dabbled in functional pieces. I use solely PLA+ filament and generally buy reasonable cheap PLA that I know works well. I use Cura for slicing and know how to use most of the settings though due to a lack of time I often find myself not calibrating my printer settings properly or thoroughly.