Farmville Strategy for Mastering Crops

I like to stick to one crop, I don't plan on getting all the first stars, then second. I just want to get that crop mastered. I do half my farm for long crops, I started with 4 day crops and am working my way down. And the other half I do short crops, usually berries during the day and then an overnight crop. So far this has worked well for me! I have mastered all 4 and 3 day crops. I'm taking a break from this though, and doing raspberries, because I want the fruit ribbons! Only about 500 more harvests to go, and probably 9,000 rasberries for the last star! So I'm going to take a long break from raspberries after this!