Oh, me too. So please have the courtesy to read, experiment and learn. Thanks.
...and that result looked like? and it should look like? How to ask a question (open new topic)
Changing the red additions might fix your issue
Be aware, unless you clear your TinyDB, all the stuff you previously had issues with is still part of notedb . So learn to use the TinyDB as it is documented in the link. Look for ClearAll() which clears the entire data store in the event handler of Screen.Initialize. Clear the db, then remove the block and try your app again. Also remove the second NoteTextBox.Text...it is probably causing issues. I don't know, run the code and find out perhaps.
You said "I cannot scroll" presumably the Label. The stuff you don't have the time to read explains how to fix that. It is VERY simple.