"Wait someone can find my true identity on the internet?"

Please tell me that you're kidding...

Just in case you're not: Yes, depending on how careful you are and how sophisticated the snoopers are. Do yourself a favor and research the term 'Doxing' to start. To give you a clue: 'dox' comes from the abbreviation 'docs'. If you're not careful, more than you're identity can be found. If you are careful, you may be pretty safe.