hi, I am sorry to hear from you. You know things are all the time changing with their perspectives, like you, your age, your friends, your family members and all other jobs you are doing today will change with time. you cannot stop ' change'. Be part of it. Stop looking for happiness. Stop your self from feeling lonely. loneliness is not with the persons who live alone- it is very much subjective. Some people feel lonely in the company of thousand friends. So do concentrate on big aims to keep your mind busy and make it more creative. Feel happy on little incidents. The best advice is not to stop yourself from looking for a solution. You will find one, one day. Trust me.
Cheers!