After recently replacing my hunter ceiling fan I realized that the light was too bright ,I got the dimmer from hunter at home depot it has 4 wires ground blue red black ,in the wall I have two whites nutted together,a ground,a bleck a red and a white striped,what do I connect to what?, any help is greatly appreciated!!

I'm totally new at this kind of stuff, but was encouraged by my local Home Depot that it is quite simple to add light kit to ceiling fan. Their instructions seemed simple, but the wiring was different than expected. Told to look for a single black, blue & white wire (marked with use for light) from the fan. Easily found the blue & white, but the black was paired with another black. So instead of connecting black to black & white to white as Hunter kit instructed I tried black light kit wire to blue fan wire & white to white wire. Should I have done something with black wires ? Obviously, something is wrong as light is not working. Bought the house with fan installed, do not know if the light power lead is connected at ceiling. Thanks for help, Laura