My experience about getting out of the house tells me to go someplace quiet. Sitting on a bench at a park (not near a bunch of loud children - or adults) or sitting in car with windows down somewhere with a good view is good for me. Going to a restaurant or shopping with noise (even if not loud) coming from every direction is not good for me.

Learn to say, "I know you want me to get out (or go somewhere with you). I can handle going or doing (...) for x amount of time." Don't push yourself AND don't let anyone else push you too far.