Quote from Andrew Holecek (writes about Dream Yoga, etc):

"What makes advanced practitioners of LDing advanced is that they never give up.
The single most important factor for success is perseverance and determination, tinged with a sense of humor.
It's not any different than any skill or virtuosity in sports or arts: if you want the benefits of expertise you have to stay with it. By applying the efforts you are starting to "heat up the pot" and you are changing and improving whether or not you consciously realize it."