Oil is leaking/ burning from somewhere !!!

So my 01 330xi burns or loses oil like crazy. I got the car smoke tested and replaced the valve cover gasket. Soon after I was told to replace the cvv. Now it's two weeks later and I'm still putting in a quart every two weeks. The car has 175k miles on it, but I just would like to find this leak so I can save myself some money. The only other places I could think of would be the vanos seals or the oil filter housing. But I don't ever see Any oil leaking out of the car.

Also so I did find some oil in cylinder 1 when replacing the vcg.

Many help would be appreciated

Oil is leaking/ burning from somewhere !!!