No, you do not need to change many things about yourself in order for someone to like you. It's important to remember that you are worthy of love and acceptance just as you are. While it's natural to want to make a good impression on someone you like, it's not healthy to completely change who you are in order to please them.
Instead, focus on being your best self and being confident in who you are. If you share common interests or values with the person you like, you can use that as a starting point for building a connection. And remember, even if this person doesn't end up liking you back, there are plenty of people out there who will appreciate you for who you are.
Love doesn't ask for change.