I’d read more on dsm protocols and how stupid they can be, how reductive, to tap into multi-source critiques on what is, admittedly, a highly politicised field. Agency brings in Giddens, Bourdieu, Butler et al but you could link neuroplasticity and taskscapes as performance niche, ie when entering a field of subjectivity practice focused in on extended research goals, before pulling back and re-entering consensus reality (did someone say dopamine reward?) and all its nefarious social domains
Your plasticity model works better if you factor in age - you’re at an age when modelling reality through learning is still in development. We’re all always learning but you have a systems-integration approach mapped onto what is essentially wish fulfilment by proxy - by magic. How could we integrate it to, say, a 60-something retraining for a new life? Is it replicable? Can it be extended? What if you get stuck amidst in-focus mode? How could you remain sane? Phenomenology leapt out reading here - sensory engagement in the world, being, dwelling, tasks, layers of consciousness (depth psych) etc
Magic? By definition, perhaps, a poetic intersection linked to science, religion and art. By practice? Possibly. You mention trauma and you could slip a Burroughs wishful thinking allusion in or a nod to the Ugly Spirit because of its unyielding omnipotence in the human journey. Maybe condense the same approach but you do need far more than SBC‘s take as an underpinning/unifying principle of pathology if the scope of your work is centred on it - where you could manoeuvre it and a best practice guide