Being alone is a power, it is different from being lonely, latter is the situation of emptiness where you don't have even yourself with you, but former is the situation when you have you body and soul connected to each other and as an individual you have capability to do greater and bigger things. Usually when we want to do something new, we look around for the support which is natural as we have always been among people who support us, advice us, but not everytime they are present with us, better we should be enjoying our own company and become our own strength. This is a difficult process but getting used to it will be the best thing that could happen to a person. You will never need anyone else to make you happy, you can make yourself happy. I have realised till now that we are nothing but product of our own thoughts and mistakes the responsibility of our deeds is only on our own shoulder, our achievement may belong to many persons but our mistakes and failures are only our own, we should not expect that someone will share our grief and regret. I believe that we should have faith on us and keep believing our own self no matter what. Here are three steps which will bring you closer to yourself and tell you how you are enough to do anything alone, you do not need anyone's help. This will surely help you become a person who understands the power of self belief. The three steps are as follows 

1. Remember the fact that you came alone into the world - Half of your doubts should have been cleared with this statement that you entered this world alone, without anybody's help, help has been provided to you, you didn't ask for it, also as  a child you weren't able to perform your own stuff so you have been provided help and you got used to it. But now as you have grown up you are able to do everything on your own then still you are seeking for someone's help. This universe has given each individual power to survive alone, to use his brains and invent alone, you have to recognize your power and do anything you want to. Universe has not provided you any help ever and has given you enough ability to survive alone. So alone is not a new phenomena. 
2. What you see, no one sees- This is really difficult for people to understand that their mind is completely different from others   ,two individuals can not be same anyway. Every individual is different in any aspect, there is difference in everything. We live together as a society so we are contracted to it's sphere only, if we are left free to explore, we could discover new things and new worlds. So what you know, what you see and what you think believe me that no one thinks like you, looking at a certain thing you may see something which others are not able to see at all, and that is again power of you. Don't waste time in showing and proving it to others rather enjoy and live in the world which you see, in your vision. In the world with 7 billion population, there will be seven billion worlds too, each eye sees this world differently. Loneliness comes when you want someone to see the same that you see, which is not possible. So enjoy how you see the world. 
3. You will leave this world alone - This is last and ultimate truth that you should keep in mind, death is not a phenomenon to get scared, death is the ultimate reality, one day no matter who you are, what you did, who hurt you, whom you hurt, the buildings you made, the places you visited, the relations you made, you will leave this world leaving everything behind, you will not know even where you been disappeared. This truth will give you power to believe in yourself and have strength to face any difficulty alone as, nothing could be more difficult than death, but universe will not provide you any help with death, it will not take your loved ones with you, it will take you from this world and you should know this, that being around people we are nothing but individuals living as one. 

So these are the three truths or three steps to be kept in mind, when you feel you are alone recall these statements and you will gain strength. Believe in yourself, you can do it all alone. 

Have a nice day.