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I won't regurgitate what previous letters have said - but I'd like to suggest that you are as beautiful and interesting as YOU think you are.
Consider this alone-time as the precious gift that it is. Use it. Submerge yourself in your interests. Revel in pleasing no one but yourself. Take classes and workshops on obscure or esoteric subjects. Treat yourself to dessert and a great cup of coffee at that little shop on the corner of a neighborhood you've always wanted to explore, but never found the time. Continue to take care of yourself, both for your health and self esteem.
As you're pursuing your interests you will likely come into contact with people who have similar interests, who are passionate about what you are passionate about. Make new friends. You get the point.
Don't worry so much about finding a man or being alone. Being alone can be really great! Frame it as something positive, not a fate worse than death. If you're happy - truly content - with your own company, you might find that a partner is simply icing on an already tasty cake.