I would like to add an edge loop around each one of these windows and are not 100% sure on the best way to do it even after watching some videos.
If someone could point me in the right direction that would be great. Thanks.
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you can select the faces and just use "i" to inset the selection, this will add loops to arbitrary geometry in a way the is relatively even.
Avoid NGons, and avoid Boolean operations, you topology is not quad-dominant and you wont be able to easily add edgeloops anywhere with ngons like those around the windows. in fact you will likely have a hard time doing anything at all with your current model.
Ideally your mesh should be made primarily of faces with four sides, use Ctrl+R to add edge loops, use Ctrl+B to bevel, use E to extrude, and abuse of modifiers.
In your case I am guessing a Mirror modifier would help with symmetry, a Subdivision Surface would help with smoothing/curving, and an array might help with multiple windows.