I never talk about myself since there aint much to talk about. Its like you say the sentences gets very short and I am also very emberrassed over my life in general so I dont want normal people to judge me based on the fact that I really dont have a life.

My last job that I had for 3 years my co workers pretty much only knew that I lived by myself, no kids and family far apart

Could you maybe try to approach the situation forcing yourself to make you believe they want to hear about you?