No way to harvest in 35 day. Return it and make a better plan like latewood said. It takes 56 days for 8 weeks, most strains take that long or longer. The only way to cut time is c02. You must have a closet or somewhere you can put a setup. I have a 4 x 6 in my shed and only use half of it for 12 plants and 1000HPS. I'm trying sea of green, so 6 a month. I'm trying to get at least 6 oz's a month. Getting the veg and rooting times down can be hard at first. I veg and root under fluro's. I can show you a place to get the small 6 plant drip hydro for 40 bucks. With a 400 Hps I got 4 oz's in 8 weeks flowering. Even some of the grow cabinets are much better.