If I could sum up in one word how I feel it would be powerless. You as a person can solve many problems that happen to you, for example you can try to get better grades, work more, get a better car, etc. But if no one likes you, you simply can't do anything, that's not going to change, there is no solution for this and the only thing you can do is go outside and see almost everyone with couples holding hands, and imagine them in their homes kissing and having sex. Not getting a partner is not something that can be "improved" or that you can achieve by making an effort.
