Hi ! I have the same problem (among others), and I´m trying to fix it with different drills. I think is the biggest problem I have right now, or the one with the biggest impact on my game.. I´m playing really bad lately, but I love the game and really don´t want to give up. I feel like a was playing better time ago, but, my swing suddenly goes... So, I´m going to work hard instead of cry, and I see the Key 1-3 (mentioned before) like the best way to improve... If anyone want to make some comments, please let me know. I will make a point after two weeks of hard training, and see if I´m moving in the right direction or not. Golf is really really hard.
I will begin this afternoon, and will work on the first keys:
1. Steady Head - Your head is a reference point for your swing, and this includes making a full pivot.
2. Weight Forward - At impact, 80-95% of your weight/pressure/force should be on the front foot.