When should i harvest, i know that the plant is no...

10 - 14 days til harvest. She is running on empty, hence the leaf issues.

You've let the canopy deteriorate too soon... Can't see how it progressed, so it's hard to diagnose from these pictures, but it needs some fertilizer. If you dialed back recently, revert that change. Regardless, it needs more nutrition. That's building blocks for growth, so if the leaves are dead and no fertilizer is provided, no ripening can happen. If the yellowing started at the bottom and moved up the plant, it's related to N, but could be more than one thing going on. The reddish color in tips of some leaves is genetics or cold temps at night and nothing to worry too much about.

Crisp and curly? There is no picture that shows us what you are saying all I see is a plant that run out of nitrogen too early and started to dump it own supply to feed the conversion happening in the rootzones. Difficult without better pictures to identfy where it started, might be some iron problems too but there is not much to go on without proper diary. Nitrogen and iron often present together. Plants rely on iron to process nitrogen, specifically to activate the nitrate reductase enzyme, a lack of iron stifles nitrogen assimilation. Oversaturated or waterlogged soils further screw this balance, often triggering toxic buildup or nutrient lock-out. Hopefully you will have a better idea if this is an possibility. Good luck

Hey there! First off, props to you for pushing through your first grow. We all start somewhere, and honestly, seeing those frosty buds means you’ve done a lot of things right already, so don't be too hard on yourself. Looking at your photos, you still have some time left before harvest. Those white hairs (pistils) are standing straight up and look very fresh. You generally want to wait until about 60-80% of those hairs darken and curl inward. If you want to be precise, get a cheap jeweler's loupe or a pocket microscope to look at the trichomes (the resin glands) on the buds themselves. You are looking for them to turn from clear to mostly milky white, with a few amber ones mixed in. Right now, your plant looks like it needs another 2 to 3 weeks to really fatten up and mature. As for the leaves curling and crisping right after you water, that is a classic sign of a root zone issue. When you water, the roots swell, and if the soil doesn't drain well or if the water's pH is way off, the plant suffocates or experiences a sudden nutrient shock, causing the leaves to claw or crisp up. Make sure your pot has good drainage, let the soil dry out a bit between waterings so the roots can breathe, and try to ensure your water isn't too cold or heavily chlorinated. Since you're close to the finish line, just focus on keeping her stable without overwatering, and you'll make it to a successful harvest. Happy Growing Growmie🌱