Hi,
Welcome to the forums!
The answer can vary depending if you’re using mobile or PC.
For mobile if you click the 3 lines in the Top left, click where it says your name/has your photo which will take you to your Account settings. If you scroll down there is a section which says Type of diabetes where you can change your Type. Make sure to hit save once you’ve changed it.
For PC click your name/photo in the Top right and then in the drop down click Account Details. Then the same as above scroll down and there is a Type of diabetes section where you can change your Type. Again make sure to click save once you are done.
This page is also where you can enter lots of different bits of information you want people to see/know.