Too late to trim??

Whats up everyone? I was wondering if it would do more harm than good to trim now.. my gal is in the middle of week 11 of flower (day 122 from seed). Some of her top leaves are getting light/kinda yellow and some at the top are turning a purplish. Im pretty new to growing so im sorry if any of this is just general knowledge. I was gave the seed and told it was an auto blue diesel (something like that) but it never automatically flowered so i have no idea what strain it is. Ive posted a few times through out this grow and many have said she looks to be a heavy sativa. Which is why im wondering if 11 weeks into flower is too late to trim because shes a mess!! I have been checking trichs with a loupe and sometimes a pocket microscope. They look cloudy from a top view but from sides their all clear… Some other info on it if needed (because i see many ask for that on other post)
Light: marshydro ts600
Nutes: general hydro flora series
Ph stays around 5.8-6.1
Also thanks in advance!!
 

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I know this post is old so you would ha e experience in the auto world these are week 3 flower an I need to defoliate real bad what should I do?
I am no expert but from what ive heard and read is.. that its okay to an extent to trim up leaves blocking bud sites but only remove a few at a time so it doesn’t cause more harm than good on autos but i would recommend you make your own thread or search for more info on the matter.. in reality its all up to you but like i said im no expert. Best of luck though (:
 
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