It really depends on your recovery, since during that period, your INR is all over the place. Once your physically stable, eating a consistent diet, off most medications, that's when it starts to settle. For me, it took about 2 months also. Most happen in 1. The other key factor in determining is, does the person doing your management understand what they are doing? If the answer is no, you'll never get straightened out.
You say your doing 3mg four days a week and 2mg three days a week. How is this being taken? Alternating days I would hope? Also, how often are they testing you? If it's more then twice a week and making changes each time, it's time to go find someone that knows what they are doing.
What was your INR at your last test and how soon did they tell you the number?