How do you stop your family from hassling you?

The most proven way is through extinction of response. Translated, this means that you should work as hard as you can to not respond to any negativite statements on the part of "hassling" family members. The more you don't respond, the more they will give up on hassling you. This won't work after the first or tenth time - but if you stick to the tactic of not retaliating, you will be amazed at the decrease and then almost complete elimination of their "hassling" that occurs. This is a very well-known and proven concept in the field of psychology. Again, the relevant term is "extinction of behavioral response".