Hello Kate,
Welcome to the Microsoft Community.
As for your information, I understand you have some issues with removing the text/field boxes in your Word document. Here's three ways to remove the textboxes:

Copy & Paste: Copy the text from the text box, and click on outside areas, then paste the texts. Then click on the border of the textboxes, this makes you to select them, and press Del key.
Using the Selection Pane + WordPad:
You can find the Selection Pane in [Home] tab -- [Editing] (on the right) -- Select

And you can see all the text boxes in the selection pane on the right side of Word window. Select all of them by press and holding Ctrl key while clicking on the Text boxes, press Ctrl+C, then open WordPad program which is readily available on your computer.

Press Ctrl+V to paste. You'll get the texts inside the text boxes.

Using Macros:
Notice: This method involves a bit more technical steps. This method will be useful when you have a large number of text boxes in the document. If you are not familiar with macros, I recommend you backup your file before you try.
On your document, go to the View tab, then click on the Macros button. This will show the Macros dialogue box in the middle of your screen. Type a name for the macro in the Macro namefield. For this example, we’ll use the name DeleteTextBox. Make sure that there aren’t any spaces between the words. Then, click the Createbutton.

You will be directed to the Microsoft Visual Basic for Applications, a.k.a. VBA, on a new window. This is where we’ll create the macros for our document. Note that this is a different window than your MS Word.
Create the macro by simply copying the VBA code below. We’ve secured this VBA code for you from an online resource.
Sub DeleteTextBox()
Dim RngDoc As Range, RngShp As Range, i As Long
With ActiveDocument
For i = .Shapes.Count To 1 Step -1
With .Shapes(i)
If .Type = msoTextBox Then
Set RngShp = .TextFrame.TextRange
RngShp.End = RngShp.End - 1
Set RngDoc = .Anchor
RngDoc.Collapse wdCollapseEnd
RngDoc.FormattedText = RngShp.FormattedText
.Delete
End If
End With
Next
End With
End Sub
On the VBA window, select all the content in the Normal – NewMacros (code) window and press the Deletekey on your keyboard.
Then, paste the code you copied above.
Click the Savebutton found in the toolbar just below the Mainmenu.

After these process above, switch back to your Word window and click on the Macrosbutton again. On the Macrosdialogue box, select the macro DeleteTextBox then click the Run button.
Switch back to your MS Word window and click on the Macrosbutton again. On the Macrosdialogue box, select the macro DeleteTextBox then click the Run button.

This will delete all the text boxes in your Word document while preserving all the text in it.
I hope you find the above information helpful. If you need any further assistance, please let me know and I'll provide more advice.
Best Regards,
William Yu | Microsoft Community Support Specialist