You seem to have the tools at your disposal to be very good at it
The tools hehe
I'm not so sure that you're not compassionate....
I think alot of it might be hidden behind the stern and somewhat cynical Capricorn rising.
It's also possible that your 8th house Moon in Virgo can go through periods of feeling quite bitter (?) and unappreciated (?), therefore coming across as someone who doesn't care, perhaps because of a tendency towards hypercritisism and cynicism when feeling frustrated?
I can definitely agree with that. I'm often too cynical
You also have Jupiter in Pisces, a very compassionate sign that is being amplified by Jupiter, albeit, Jupiter is in the intercepted 2nd house, so perhaps it is your task to find a practical way to harness that compassion to catalyze transformation within others, through therapy?
Both your Venus and Mars are in Cancer, a sign who cares deeply for others and the fact that Mars is in the 7th house of "other" and Venus is in the house of everyday work, service and health (including mental health) makes it more interesting.
Very true, I guess the health field would be really great for me. Thanks for your insight; it helped me.