Honestly people are forever changing their views and how they percieve their sense of self. That is perfectly normal and fine. I dont think humans were made to be 'set in stone; so to speak so if your questioning your identity dont worry, there are many who do this no matter their gender, nationality, religion, or anything else. Being under 25 theres so much room for growth, change, adjusting and figuring out who you are. Ive read that many older people are still working out 'who they are' or that they feel they have changed alot since they were in their teens and 20s.
There are others i know who have different nationalities and cultural beliefs who embrace that by participating in their cultural acitivites etc, encouraging others to participate and also share with others about that culture and their beliefs but also embaracing everyday life in the country they live in such as learning surfing, or something they hadnt considered trying out.
Is there something in particular that is bothering you about your identity thats making you want to change?
**NEVER be afraid to ask for help because you're WORTH it!**