It may also be that four weeks ago, when you started there was a lot less wind, and certainly the last week or so has seen this change.
If so, you MAY be being overly critical? When the air is silky smooth there are very few anomolies to worry about in the flare. But an unexpected gust (even a small one) can make quite a difference if you've been used to none.
Good advice from 500man as well. Having a break and coming back to it will do you good.
You're just starting. It takes time, but it'll come.