Hey there sunnydays. Welcome to the party!
Learning just happens.
Get yourself a whole bunch of photographs of various types, and start experimenting on 'Effects' & even 'Adjustments'. Then check out the tutorials and work up towards doing 'Layers', which is tricky at first.
I completed my first 3 layer work yesterday, so now I know the bare basics. Yesterday I also checked out the tutorial on 'levels' which left me still completely confused, but am sure I can pick up the idea of it eventually.
I have been exploring the 'RGB' Curves on my own and am starting to get the hang of it a lot better than 'levels', which virtually does the same thing as 'levels' (almost).
Happy New Year Everybody