the title says it all. 

Im 24 going on 25 and literally don't feel like a whole human. I feel like I'm just existing, I don't have my own personality apart from having distinct likes such as books, movies etc. my views and opinions on things and my caring nature(or is that just BPD) but literally none of that makes a personality. It's just basic traits. I cant help but realize that I have no personality nothing that is me. It has definitely hindered my life especially when thinking of my future. Until last year I was in college and changed majors like three times and wasted 4 years just to leave with no degree and no idea what I want to do. I literally can imagine doing everything possible and nothing at all(very INFP of me I have many unrealistic ideas too but I am aware they are just daydreams)

Has anyone here found themselves? How did you develop a personality ? Anyone have advice? Am I too old ?

I'm not medicated btw