Not everyone can be a full time exJW activist.
Not everyone can be a part time exJW activist.
Not everyone needs to be. If you *can* help people, then it's a great thing to do, but the guilt you might be feeling over not wanting to become an activist is probably residual cult programming. We shouldn't feel obligated to do every single good thing that it's possible to do. It's not our responsibility and it's not even practical to try; it leads to burnout. Take care of yourself and your family and then the rest will take care of itself.