1st Time Grower - Plant#1 Mystery Strain

Hey Friends, end of week 13 from seed. This week i noticed colas are slightly getting thicker, but still a slower growth compared to my other plant (#2) I had to install some yoyos because some colas are falling to the side due to its weight Had trouble maintaining a steady humidity level Leaves are beginning to fade, not sure if its normal or because I increased light intensity this week Increased light intensity to 350 - 400 lux x100 Colas for some reason do not look thick enough and so far no amber on the trichomes, might need to wait Another week or two so I could begin flushing. Smell is stronger like green lemon mango, that weird smell it use to have is slowly going away. QUESTIONS So I planned a trip with my family on oct 9th, when booking the trip around 3 weeks ago I estimated that the plant would need another month before harvesting. Will this plant be ready for harvest before oct 9th? When should I begin Flushing ?