Yes, I am a Cancer Sun, Capricorn Moon myself. Both are kind of reserved signs, and we tend to be wary about who we let into our lives. I find that when I am most upset, sometimes that's when I push people away, when I need them the most. But I know both signs have overwhelming and strong emotions. I do the same thing, and it is hard to learn how to not build up the walls. At times you may need that time to yourself. But don't get carried away pushing people and invitations away. Even if you feel like you don't want to go out to lunch, or go shopping, or whatever, try to get together with a friend who invites you or is trying to reach out. You need to be out with others, when we are happier our vibrations are faster. I know it's hard. But I am sure somebody is trying to get you to go somewhere or do something. If not, try to join something new, take a course, or find a new interest to meet new people. Texting is not company, so make sure you get out somewhere. Call somebody and invite them to do something if the activities they suggest are not to your liking. I do understand and it's hard, but Capricorn is disciplined, and Cancer is basically friendly. Push yourself. Feel better.