how do we alone?

did you think about your friend? in fact I'm alone and I don't know how I feel ! I have many friends in my work but they just want me to do things for them I can deal with this but the problem has occurred when I understood I don't know who's my friend? why I have relationship with some person? finally I have to decide with this sentence "I have to be between them" , I don't know maybe I will do some duty for them ! I had many good friends but now I just lost touch of them because of age or desteny, someone told me "if you search to find friend on the internet you will find someone" but I love to meet people and speak with them and sometimes traditional is better than modern way I'm not sure maybe I'm in wrong way! I believe for get out of lonely life we have 3 ways:
1-go out and say hello to person
2-enrrol in group
3-find common things
now the qoeston is that are you alone ,too?