Connie, you really should check with a good horticulturist about the value of weeping willows. Our town will NOT let them be planted within the city limits. The wood has very little strength and everything from twigs to large branches come down at every opportunity. They are a constant chore to rake around. The roots get into anything and everything and will crowd out other plantings.
We had one when we bought our current house and that was OK because all of our neighbors wanted to cut it down. They did, so I just did some of the work. It took 3 summers before I could get the wood aged enough to even think about burning it because it is so full of water.
As for your willow that's not growing, if it was mine, a liberal application of a flame thrower would be in order. If you have to have a willow, get a corkscrew willow. These are still bad, but not as bad as other varieties.