Don't care too much what others may think

Such a tip on writing came from the famous writer Stephen King, who you probably know best for his work on such books as It and Storm of the Century.  You can read Stephen King's seven tips on becoming a better writer online here.  I found what he said to be very truthful and to the point.  I discovered his advise rather long ago, but I wanted to bring up his #5 today because I think we can all relate to it.
Don't care too much what others may think.
No matter how hard you work and how much effort you put into your writing there is no way you can escape the people who just won't like your work at all.  You know as well as I do, we writers cannot please everyone.  There are going to be people who tell you that they absolutely love your book, and then, just as Mr. King has realized over the years, there will be people who have no respect for what you do at all.
But you will continue to write because you are a dedicated person.  It is hard for all of us when we see critique that is so harsh on our story, but is it really any different from the stack of rejections you have?  I have faith in all of us that we can keep going.  Accept now that not everyone will adore your work, but continue to write what you are.  There is always somebody out there who is willing to read.  If you're ever feeling like your writing is just going nowhere at all, go to your friends or someone else very close and ask them to look at your work.  We all know our friends can be very bias about our writing, but in times when you feel yours is not good enough that does not matter.
All the writers who are published now went through just as much as we are now.
Keep writing, my fellow writers, because for as long as we are those stories are slowly making their way to the public.  The longer you work at it, the more people will take note of how serious you are about what you want to do.
So I wish you all the very best of luck in your writing, and know that I am in the very same position as you.