In a certain sense, I think it's normal for you to feel this way. I'm alot older than you and when I see someone who I admire or who's traits make them a nice person, I still try and adopt these better qualities. I think we continually try and add qualities to ourselves that we see in others.
If you're doing it just for attention, it's probably not so good. But if you're truly just looking to better yourself with traits you see in others, it's a learning experience.
I think it's a good thing that you can reflect on your behavior or personality and see things that you'd like to change at such a young age. Some people don't learn to do this their whole lives. You should throw out the bad and try to adopt the good. I'd say you're perfectly normal
Identity crisis? 
Linear Mode
