I live in Los Angeles, CA. Last year(2011) my lawn was dug up completely and reseeded . Green for a few months. This year my grass was/is brown like straw but green in spots. The ground is like clay. I am a senior and cannot afford a gardener. With the help of my son what can we do? My lawn was the prettiest in the block and now it is "embarassing". What can I do? Help...