Bubbleberry

so right now my issue is not having a tent big enough for this girl. I want to train each individual shoot but I'm not sure how I'm gonna do it . I put a second screen on last week but took it down because it created a canopy above bud sites I want to see flourish. any ideas? also if I put her back in the tent but dim the light to 750 watts as it will be 24 inches from the canopy, would it be better than what i have now? it's only surrounded by white sheets and not fully enclosed so a lot of light leaks out. but the temperature and light distance has been acceptable.