My condolences.
In addition to being there for mom, really try to find someone who can be there for YOU (family member, close friend). If you have any siblings, make sure they do their part, don't try to do everything on your own if possible. You won't be much help to mom if you're not dealing with it well either.
One reason why you might have not cried and been going to the strip club is sometimes some losses are so painful that your heart refuses to let you feel anything at all in an attempt to shield you from the pain. This can cause you to seek out forms of pleasure, not only to feel good but to feel something, anything.
Everyone deals with situations like this in their own way. Nothing will make this feel better. Losing an immediate family member is like losing a limb, you never get over it, but with time you learn to adjust. Try to give yourself the time you need.