Living alone is different than being lonely. For many, living alone is a transformation from being dependent to being independent. However, it is when living alone, gets overboard, that it is termed as loneliness.
Loneliness is just like any other phase of life. It hurts, it makes you wonder why, it makes you seek someone or something, it makes you try harder and harder every time and yet, it only gets your further down.
However, on the brighter side, loneliness, just like any other phase of your life, so it is going to pass. You may be in this phase, because your closest friends have left, you may be in a long distance relationship, or you just shifted to a new place. Nonetheless, you are going to over loneliness, but with time. Thus, it's alright to be alone.
The reality is, either you or your friends, in the fast pace of life and maddening sprints of careers, have reached a new point in your life. Focus on your achievements and strive for a better tomorrow, and soon you would have answered your own doubts.
For instance, a simple thank you said to a lift man, a smile to the beggar on the street, or a helpful gesture towards a blind man does earn you love, respect, and significance in their lives. These gestures, may be insignificant to you. However, they mean the world to someone else.
On the positive side, being lonely is essential to understand the worth of a good company. Take your loneliness as a challenge and deal with it upfront and along the way try to enjoy your own company.