Oh no, don't be afraid to ask, we were all beginners at one time.
To change the field of view, go to the menu bar, Camera > Field of View.
The cursor on your screen should look like a magnifying glass, and you click and pull up or down to change the number on the bottom right corner of the screen. Standard field of view is 30 degrees in Sketchup, so I would suggest changing it to that. If you need more help, just ask and I'll do the best I can to explain things.