First of all, you will have to work hard to kill this vine. Let it grow out, don't love it too much, then next summer reassess what you have. Wisterias are resistant to training, but once you figure out what they want to do you can go with their flow and make something nice out of them. The key is to watch for rot in the main trunk, which starts in the second or third year out of the ground. If you get it, don't panic, just let it continue to grow how it wants and style it around what it gives you. When it gets rootbound, by the second or third year, it should start blooming and they are generally faithful every year after that.