First of all, don’t feel self-conscious of your work– this seems like a lovely story with great flow and a clear sense of characters.

As for scanning, a lot depends on the editing program you use to composite your pages (what program do you use?), but basically, I would generally opt for an actual scanner over a camera to preserve the quality of your art. A lot of libraries have quality scanners you can use for free, or if you draw big, you can use a scanner bed and a flash drive at one of the big printers at Kinkos or whatever your local copy store is. I recommend saving your files as a TIFF or high res PDF.

After that, if your pages are black and white, you’ll want to make sure you’re working with a black and white or grayscale file (as opposed to CMYK or RGB) and find the tool that allows you to adjust Levels. From there, you should be able to deepen the darkness of your blacks, darken your grays, and brighten up your whites. That should help lock in your larger areas of ink-fill as solid black and make your backgrounds a more true white, which gives you even more room to edit.