Kera OG Kush; let's try topping!

Oops all Grow Techniques this week, the plant just keeps stretching, This is my first photo, I did not know a single plant would fill an entire 70x70 in a 15 liter pot. Scared I was going to run out of room I super cropped her and placed a trellis, she looks absolutely mangled at the start of this week, Im curious to see her react to this since nothing else has stunted growth thus far... some more lessons learned from this: if Im going to top, i should keep topping, i could've done better and had more top sites plus saved vertical space and that 1 photoperiod plant in a 15l pot = enough to fill a 2 by 2