PCB drawing board is easy to get started, if you want to master it is very difficult. Because the component layout of the PCB, the placement position of the filter capacitor, the rules of the line, and so on, are great knowledge.
The same schematic, some people draw a board that works, and some people draw a board that is riddled with problems. This is to rely on actual project experience to accumulate experience. Therefore, it is necessary to constantly learn and sum up experience.
Learning is not difficult, learning is difficult, wiring is a very troublesome thing you have to look at the schematic to determine the layout, determine the size of the line... Experienced people know how to resist interference... A lot of learning...