I NEVER TOOK ANY DECISION MYSELF

At this time I am really confused and frustrate regarding my thesis. I dont know exactly what am I doing. When I hear others asking me what's your interest, it leaves me most confused. I am asking myself these days what my real interest is. At this point of life I am looking back and visualising how I came in this field. I have been questioning myself is this all that I really wanted to do in my life? I never took any decision myself . And now I am scared of every consequences. How long am I going to study just for the sake of studying? I am not enjoying my work. I am trying to force myself all the time.