PCB designing : I managed to complete the designing of the PCB. I made quite a lot of mistakes and had to redo it multiple times(I accidentally wired the diodes in reverse bias lol). I also tried to make the cable management better and make it more compact. Nevertheless, I learnt quite a lot throughout the process. There are still some errors in the PCB files which I plan to resolve very soon. P.S. Routing the PCB tracers is oddly satisfying :)