How to make my own account for iPhone?

My mom and I both have iPhones. We even share an apple account. So when I download an app it also goes to her phone and when she downloads one it comes to my phone. Is there any way I can change this without her knowing? Can I make my own account with iTunes then log out of hers on my phone and log into my own? If I do that will I loss all the apps I already have and all my music? Also will she be notified if I do this?

We'll if you want to make a new Apple ID that's a option but the downside to that is your music and apps will not be there
I do not think your mother will be notified if you do it on yours hope this helps

Just sign out from your device and get a new Apple id from your device. You will not lose any data. But if you use iTunes things may change.

Make a new Apple ID at appleid.apple.com then switch iTunes to the new Apple ID.

Appleid.apple.com. You can make your own account and use it. She would not know but the purchased and downloaded content can't be moved to another account. It will stay on your phone until you delete it yourself.

That or you can go to Settings-itunes and app store and turn off automatic downloads.

You can either go on Apple.com or you can make. New account right from the iTunes or App Store app on the iPhone.