First of all, if you are getting blooming, your scanner glass is probably dirty. Clean that first. The mirrors maybe dirty too. Look up a tutorial to clean them.

There are complicated ways to make scanning simple, but the simplest way to make scanning simple is to scan a target with the image. I use a Gretag mini color checker because I have one. Since the values on the target don't change, a few clicks with the eyedropper and a levels layer in Photoshop make it simple to color balance the image. I have sophisticated profiling software, but profiling doesn't account for drift, so I just use the target (which never changes).

Here is what a scan looks like.