its a cbd dominant strain, you can't expect to get the same yields as a thc strain.
although in saying that, its weird that you didnt have many trichomes, mine is absolutely covered in them, with a great smell. im guessing you probably got a bad seed.
closer pictures would have been nice, but from what i can see it looks like you used too much nitrogen during flower (too green). im at day 55 or so and already losing a lot of colour from the leaves
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