dude you should really try out those charcoal pencils and oils/gouache/acrylics, whatever fits you better, before you jump into photoshop again
without PS and its scribbleforever liberties your errors will become much more apparent to you and hopefully you will see them quite early, and won't repeat in your future work
ps and stay away from reference photos until you've done your first several dozens pictures from life, otherwise you will be stuck in scribbleworld again.
copying a pre-composed 2d picture is deceivingly easy
seeing actual forms, volumes and the way light works on them is harder, but more important.
on the fourth day of glitchmas my painter™ gave to me
four random crashes, three broken brushes, two system hangups & one corrupted workspace