Photoshop basics for Concept/Comic book artists

Hi all, i feel like i'm losing my mind here lol. i'm an artist coming from sketchbook pro to photoshop and i'm feeling overwhelmed by all the nooks and crannies of photoshop cc. I'm looking for specific training videos that can translate into my style. i've attached a piece i've done in sketchbook pro. just from my googling, alot of what i've seen so far is about how to manipulate photos. Are any basic training videos about how to use photoshop for comics or concept art? unless i'm looking in the wrong place. i'll even pay for basic training lol