Yes, I agree with above.
Also, most computers come with a built-in basic photo editor, such as Paint, and you can reduce the size that way.
Step by step:
Navigate to the photo on your computer.
Right-click on it and choose "Open" and whatever program opens it should have
a "Resize" feature on it. Resize it to 50% or whatever you need.
Then click on it again and choose properties, to see what file size it is.
Then resize it to bring it just under 250K.