Here's the thing about writing. It can be a highly personal endeavor. That means any criticism you get can feel like a direct attack on your being. But it doesn't have to be that way. I have found bad reviews often include things I can use to make my writing better.
Take exclamation points, for example. Two reviewers on two different books said I use too many of them. I took a look at my current manuscript, and I found over 130 of the offensive marks. Oops! It would appear I have a problem!!!! Needless to say I removed them, and hopefully the work flows better now.
That leads me to my humble suggestion on bad reviews. Read them once, and set them aside. Let the emotions bubble up and out. Once you are calm again (and for me that usually takes a few weeks), then read the bad review again. Look for objective criticisms and truths you can use.
Of course, some reviews are not going to be helpful at all. I had one person say I needed to do more research on the life I've lived for the past 30 years. That one made me chuckle. Another gave me a score but no comments. The point is, you're not going to please everyone with your writing. As long as you're pleasing yourself, and you're selling your work, then keep on doing what you love.
Now it's your turn. Tell me about a bad review you received and whether or not you could use anything from it. I would love to hear from you, and promise I won't respond with exclamation marks!