There are so many different ways that people deal with stress. There are the unhealthy ways like drinking, fighting, taking drugs or just not dealing with it at all. There are positive ways to deal with stress like exercising, focusing on a productive hobby or even seeing a therapist.
Then there are the borderline cases, which can be good or bad depending how far you take them. Cooking can be an excellent stress reliever, unless you start eating everything in sight, in which case it ceases to be healthy.
The same can be said of shopping. If you are able to shop carefully and with restraint then it can be a wonderful way to spoil yourself and so reduce stress. If you are able to acheter en France then the challenge to control your shopping habits may be put to the test.
Shopping at home is fun but getting to shop in one of the fashion capitals of the world would put any shopper to the test. But of course if you are buying in France you have to consider your suitcase space.
It may be advisable to wear only one outfit, bring some pyjamas and then fill your suitcase for the way back with all the amazing new purchases that you have bought. After this trip if you are still stressed then maybe you need a massage.