There are various ways of having your work critiqued. Most of the really useful ones you will have to pay for.
The important thing to remember is that a critique will be constructive and given positively. Writers want other writers to do well and negative criticism is a great way of putting people off. If you take the advice negatively you probably need to examine your reasons for writing in the first place.
Taking constructive criticism is not easy, but if you take note of the suggestions made you will see clear improvements to your writing.