So I'm masking in the movie clip editor, and I noticed that the video is compressed on the sides to where its a square now, and When I use the mask in the vse, it comes out stretched out, but still offset. Help please
Unfortunately the movie clip editor doesn't seem to have a way to deal with non-square pixels. So your mask is getting created using a frame that is 1440x1080 pixels.
When you bring that into the VSE editor it is stretching that frame to fill a 1920x1080 canvas (as determined by your render settings)
So there are three choices:
1. (The one I would use because I dislike the VSE so much) Use the compositor.
Setup your mask at a fixed size of 1440x1080 and composite using the Alpha Over node.
2. If you must use the VSE. Change your render settings to 1440x1080 with a pixel aspect ratio of X:1.33 Y:1
3. Keep your settings the way they are now and deform the mask strip on the VSE: In VSE you select your mask strip and add a Effect Strip->Transform strip. Then change the settings to use 0.75 on the Y scale to have the mask match the aspect ratio of the original footage.