How do I overcome my unbelief and hard to get along in daily life..?

Well,if you don't have any interests in common with them,you will find it hardly possible to last a long talk with them.In my personal opnion,since you have listened to what your friends had talked about,you may have some ideas about what they are interested in.Then check whether you are also interested in it.If you are,you may find something they don't know,and tell them.They will naturally become interested in what you say.If you are not interested in what your friends are talking about,listening is a good way to get the information from their talk.From the quiet listening, you may have some questions.You can both find the answers by yourself and ask them for answers directly.Don't be afraid of being laught at.I hope you will get along well with your friends and lead a happy life among them.

i think that is a good first step pal. just keep on listening, but make sure you are attentive and try to practice empathy. try to read the whole context not only by the words they say but also the nonverbal cues.