Hi Swampinou,
Welcome to Apple Support Communities. We understand that you're having an issue with lifting a subject off the background of your photo. We'd like to help.
Which iPhone are you using and what is the exact iOS you're running? You can find that in Settings > General > About > Version.
Then, let use know if these are the steps you're following:
Interact with text and subjects in Photos on iPhone - Apple Support
Lift a subject from the photo background
You can lift the subject of a photo away from the background so you can copy and share it in other documents and apps.
1. Open a photo.
2. Touch and briefly hold the subject of the photo. When it’s outlined, do one of the following:
* Tap Copy, then paste the subject into an email, text message, or note.
* Tap Share, then choose a sharing option, such as AirDrop, Messages, or Mail.
If the process still isn't working, tell us a little more about where you get stopped during this process.
Take care!