Sheep indicate conformity; think of sheep and how they have a heard mentality.
Sheep follow the leader of the herd of the shepherd.
You lack creativity and you should venture on your own.
It could also be a metaphor for being sheepish; have you done something wrong? If the sheep has black wool it symbolizes greed and temptation.
On the other hand, you may be the black sheep, or non-conformist, in the family.
You go against the grain.
Share your dream, get it solved.