I am not familiar with attachment styles and do not have time to read the link, but I have read your post with interest and advise you to not think of BIG relationships of romantic nature right away but instead work on tiny connections - an extra smile here, an enthusiastic "thank you" for service provided there, etc. Then, distant friendships - say, at a book club, meetup of some kind, somewhere where there is a semi-formal setting within which openness and friendliness are expected and are moderated, not necessarily by an actual moderator, as is the case with bookclubs, but possibly by an informal leader, so the resultant environment is not threatening to you and draws out your best social skills. And little by little, work on appreciating what other people have to offer, how they form connections, their friendliness towards you. When you feel comfortable in such controlled situations (when you thank a service provider, it is a controlled situation because most will thank you back at least out of good customer service skills), you can graduate to less controlled situations, and you can bridge the two worlds by, say, asking a book club partner of same sex to have coffee with you. Form connections on PsychCentral as well, to keep exercising the social muscle and to learn to take pleasure in giving and receiving friendly communications. You are too young to worry about never forming a romantic partnership, for one, and, for another, such worry would not precipitate anything good anyway. Take baby steps, achieve the feeling of security and hopefully joy as you proceed, and do not rush your progress. And, congratulate yourself on small milestones. All the best.