Happy New Year

I have a black eye Susan vine that has pretty much taken over my side fence. I want to prune it back some. The crazy thing is still blooming.

Right now it is growing out of its original one gallon black pot from Lowes. (I think, I havent seen the pot for over a year, all grown over) Should I repot it? Or should I trim it back and stick it in the ground (finally after two years?)

The vine is about 8 feet high and 15 feet long-about 12-18 inches wide. This is the 2nd winter it has survived, we had frost a couple of weeks ago-it just kept blooming.

I have neglected it for so long-I think any attention I give it now might shock it to death. Poor thing.

Thanks for your advice.