Its not easy, the first thing is to accept that you have this condition and lifestyle adjustments are needed in order to live the best possible life you can, without intense pain or cramping.
Its hard when going out for meals or to friends because ones natural instinct is to be polite and eat what is offered up, however you can easily communicate dietary requirements to your host for example. Most restaurants have suitable gluten free meals on offer so that should not pose a problem.
The hard part is sticking to a diet which excludes certain food groups however finding healthier options will mean that you can still enjoy your food, albeit in a different way. Taking up new hobbies or finding relaxing ways to destress such as having aromatherapy massages will also help.