It's like learning CAD:
Practice! Practice! Practice!
Also one other thing seams to becomme a prob more and more: A lot of Tutorials are made with old versions of FC... The workfow changes, especially the change of from 16 and lower to 17 and highter brought a lot of changes.Another problem is that so many video tutorials on Youtube teach bad practices.
Since a while we have with A2+ an assembly WB (as add on). An functioning assembly WB will change the workflow again and may be (i hope so) the tutorials made with FC 0.17/0.18 become outdated with FC 0.19 to...