Yes, IS/a does work to help you be perceived as stronger, and I’ve noticed that some of the married women here who have tried the opposite one from their natural personality don’t always have good results. Here is an example: my husband doesn’t like IS-B
Though you never know, just try them and have fun with it. And yes, Instant Shine will work on you, it is a great mood lifter. And the Instant Opnenness will help with shyness.