Psychology is the discipline that is supposed to apply logos to psyche, i. e. catching the free and radical fairy princess with a butterfly net, plucking off her wings and explaining to her why she isn't supposed to be and doesn't exist.
It oftentimes and quite readily branches into behaviourism, which isn't much of a cardinal sin seeing as we still don't properly understand the majority of underlying little things, such as the brain.
I like the scientific bit of psychology and hope it gets us to a point where we can not only understand, but properly control (ourselves) and fix things that need to be fixed, mostly those that cause harm and injury and suffering, where my focus would be on individuals... as a lot of individuals with issues still fall through the cracks of medicine, therapy, society, the floor and... well, everything.
I am worried about the discipline of psychology; having seen too many times when seemingly inspired students get bored, have other things to do and just plain make data up, thus skewing studies, potentially forever. I am worried about the large amount of dissociative and hostile potential within the discipline. I am worried about loud-mouthed bullies getting their way against all odds, facts and reason. I am worried about this rather new discipline having already entered a stage of entropy and decay.
I admire Freud, I love Jung. But more for their who-dares-wins approaches and the just-do-it attitudes involved than actual merits to the modern day science of psychology. There is potential in shamanism and rituals that modern day psychology mostly ignores. It is against human nature to be all scientific and all clinical about human nature. I think politics have already crippled certain aspects of the non-medical, non-physiological approach to psychology, and it's more than just a speed bump to the whole discipline.
I believe material of interest to psychology is to be found in pretty much everything we humans do, think and feel. But that's largely to those ridiculously large brains we lug around. I am also certain that certain key elements of what we label as psychology facilitate interspecies interaction, be that with dogs or other more evolved mammals. Oops, there's that naughty behaviourism again. I'm pretty certain I was taught behaviourism shouldn't exist in a modern, all-inclusive society. OK, bring on something else that works as good or better, then.
I myself am mostly interested in the psychology of groups, as it generally tends to be more obviously trigger-response and less constructed and staged than that of individuals. I am also interested in the neurobiological and chemical aspects of it, as I find the average brain to be most fascinating a thing.