You can't really push yourself with something like this. At 14, you aren't done maturing and your opinions and feelings will definitely change between now and when you're 18 or even 23. Finding yourself is a life-long process which deserves time and care. As you experience more pieces of life, your personality and beliefs will start to firm up like jello in a fridge without much conscious effort. It's really not something you can find in a book, unfortunately.
To find yourself, just keep living. Maybe step outside your comfort zone a bit: go somewhere you've never been before, pick up a new hobby like photography or playing an instrument, talk to someone who looks interesting...anything that expands your knowledge of the world around you. These experiences will help you learn more about yourself and they're pretty fun, too!
Other than that, relax. When you become more sure of who you are, life is so much more enjoyable. As long as you continue to work your brain and challenge yourself to think about, see, and do new things, this identity crisis will solve itself. Good luck. :) [ Amarete's advice column | Ask Amarete A Question ]
Attention: NOTHING on this site may be reproduced in any fashion whatsoever without explicit consent (in writing) of the owner of said material, unless otherwise stated on the page where the content originated. Search engines are free to index and cache our content. Users who post their account names or personal information in their questions have no expectation of privacy beyond that point for anything they disclose. Questions are otherwise considered anonymous to the general public.