He is simply unused to harnessing his chakra in the same manner we do. It will work out for him in time.
[While inwardly worried for Shikamaru, he's also aware that he's going through a lot, if not the exact specifics. He will treat him like an adult, as he deserves that much.]
[Action]
[While inwardly worried for Shikamaru, he's also aware that he's going through a lot, if not the exact specifics. He will treat him like an adult, as he deserves that much.]