Most people's feelings are pretty shallow and only revolve around themselves. You really have to be cautious who you feel deeply for, and never feel TOO deeply for anyone. I had a psychologist basically tell me the same thing once many years ago. They turned out to be right too.

Dr. Lector did indeed have uncanny insight

On some level I could sense you had walls built up. It's ok to be scared & guarded, most people are. It's hard not to be with the way the world is and through personal life experiences/hardships faced. Still worth it to try to find something to feel deeply about, it's how we grow as people, gain empathy, find what makes us happy.Feel deeply enough about yourself first and foremost to recognize that you too deserve a life filled with all the good stuff.