Get a life

"YOU HAVE NO PERSONALITY!!!!" 

My friend told me that yesterday, we had a heated argument and he said that I am sensitive, useless, stupid, immature, etc. I know that I never had any personality growing up. I don't even know what my favorite color is, I just repeat the color that person said. Every time, people ask me about sorten stuff I never know the answers. I know what people are saying is not gonna determine me but he was my best friend. We shared everything and our thoughts about our lives. It's really embarrassing that I'm almost 19 and don't know anything about myself and take care of myself. I don't even know how to make friends. HE was basically my only friend, so I have no one to talk to... I can't tell my family because they would just yell at me. I need some advice lol