Today's post is more of an FYI than a how-to article, because commas are a much bigger topic than I'm prepared to handle right now.
In short, though - you may be using too many commas. Or not enough. For most practical purposes, you don't have to actually stress over every comma, you just have to avoid excess. If you're adding commas because you seem to remember your English teacher telling you to use commas in a certain context, you're probably using way too many. If you're cutting them when you think you need them because you read something about comma overuse and are trying not to use any, you're probably using way too few.
If commas really stress you out, it's worth picking up a style guide and reading up on them rather than blindly trying to strike out and add/smite at every opportunity.