Did I start flushing too early?

6 weeks is definitely to early to start flushing in most cases. You have to use your own judgement based on what the plant is showing you. If you started so early because you were going on a timeframe based on what the Breeder said the plant would be finished by, NEVER DO THAT. There's so many things that can prolong how long it will take for it to be finished. The color is changing because their no longer getting the nutrients that they need. When the trichomes are looking the way you want them to look at the time of harvest that's when you should start flushing. For me I like around 70% cloudy and 30% amber before I start the flushing process.