Modding takes time, don't let it bother you; it took me several years to learn how to make something even half-decent, learn and improve; it always takes time.
Modding isn't getting 'harder'. I'd say it can only get easier with more discoveries being made and more hacks and tools being made.
CSBD or small challenges mods are a good way to get into modding though, it's always fine to make something by editing before you start making your own maps and stuff.