Here is my biggest hurdle with compassion: I am by nature a solitary person. I do enjoy interaction, but honestly, I enjoy it when it is limited. I enjoy quiet, I enjoy time to myself.
Compassion will be eventual. Sivali says I need to practice it with myself before I can practice it with others.
I cannot afford to cheat myself of life experience by isolating. I have wasted enough time in life. I am studying Dhamma, now to practice it..and I can't very well practice it alone.