I see your chart showing very good potential for interpersonal relationships. Jupiter and your Part of Fortune are both in your seventh house (partnership, relationship), and Jupiter has a nice trine with Venus in the third house (communication).
Reading that as a predictor of your fate, we could say that you are likely to gain wealth through marriage, or that you're likely to be very lucky in love. Reading it as what's going on in your own psyche, it looks like you have great potential to do well in personal relationships of all kinds--romantic, platonic friendship, working partnerships--and that this potential is aided (trine) by a very communicative Venus. Jupiter in turn lends its luck and expansiveness to your communication abilities.
But superficial communication and superficial relationships are not for you. You need them to go deep. In Scorpio, Venus's classic manifestations--love of beauty, romanticism--usually don't show very well, because Scorpio is its fall sign. But that placement is very good for bringing out the deeper version of Venus. Scorpio insists on stripping away all pretenses, all superficiality, showing things as they are deep down. Venus in the context of Scorpio facilitates the deepest possible intimacy: communication devoid of superficialities.
Pisces, the sign of your Jupiter and seventh house, also needs deep intimacy, and tends to be highly sensitive to the moods and energies of others. That gives you great interpersonal intelligence, but, paradoxically, can result in you being overwhelmed in social situations, and a natural reaction to that overwhelm is to shut down.
I would guess that with those placements, you have little use for small talk, and casual friendships don't satisfy you. You need deeper ones. But lots of people don't relate on such a deep level. That naturally would leave you feeling disconnected and misunderstood. And to make friends, our society insists that you go out into social situations that are just too overwhelming for people with that Pisces-like sensitivity.
Your fifth house sign also reflects this, in a way. Fifth house indicates, among other things, the kinds of friends we need and our approach to friendship. Capricorn is all about boundaries and security. You need solid boundaries, and you need them respected by others, even in the most intimate relationships, and you need friendships that make you feel secure. Casual or superficial friendships don't satisfy that need. You need to really trust someone to be able to let them in.
That would explain why you have so much trouble being social, and probably also why people seem to avoid you. When you shut down around people, they get the sense that you don't want them around and back away.
To have friends, you would have to find them in a way appropriate for your level of sensitivity and need for boundaries. Not everyone does friendship the same way, nor should they.
On a non-astrological note, the way you've described your situation sounds like the kind of experience someone who's been heavily bullied would have. That happened to me when I was a child, and "I can't make friends" remained a part of my reality well into my adulthood, even when I actually was making friends very easily. If that ever happened to you, it would, if anything, heighten your sensitivity and need for security and make you fearful of others on a deep level.
