Just have a look at this lol

So.. autos 9 weeks old. Biggest one only just starting to get clumps of pistles!

hight is 140cm pulse the fabric pots = this

super cropped some bits and tied back/ pulled what I can to the sides in my roof tent

other 3 are budding well but the forest is to thick to get back there to do anything now and they are still growing just inches of the lights now

honestly I never thought they would get this big as I have had a few issues early on and apparently the max for my northern lights seeds is 120 and being a first time grower I didn’t think I would get close...

WhAt should I do

I think you cant do anything now. but ın early stage maybe you can training your plant to keep short.

Looks like super cropping will be necessary.
You're probably going to run out of headroom soon, so I'd do it sooner than later.

Raise your lights? Cut the longest branches down? Super crop?

I have raised the lights as much as I can now with cable ties and have already super cropped the big branches. I thought the stretch would be over when they started to bud... apparently not. You mite not be able to tell but one plays already touching the top. Probably going to burn a few buds? Will
It cause the plants to much stress and ruin my grow?

it’s a lesson learned I suppose.. should have lst right at the beginning.

I have read it happening a few times with northern lights autos taking a lot longer than they should late to flower so maybe it’s just the strain