For amateur photographers, which is more important, pre-photography or post-photography? Which is more difficult?

I am an amateur photographer, and I think the early photography skills are very important. There are too many things to consider, such as conception, composition, light, angle, and later retouching can only be done on the basis of the previous period, which is very passive. The early stage is more difficult. If you can't do it well in the early stage, it will become difficult in the later stage. If it is done in the early stage, it will not be difficult in the later stage, so the early stage is both important and difficult.