For starters work with what you got until you can afford $10-$20 You will NEED these items
spot shot-hangable bug repellent works on everything no spraying involved.
2 or more "daytime" cfls the curly spiral "bulb"
2 or more soft cfls
2 or more heat utility lamp ballasts
mylar NO tinfoil or white walls are fine too
ph test strips, can get them in any pool isle, test water runoff when flushing once a month when plant is dry and due for a watering.
dolomite lime to mix with soil or water to fix and stabilize ph. can purchase at home depot walmart doesnt sell it. On a side note i mixed dolomite pelletized with the water about 1 tablespoon in 1 cup and watered with that right after the initial watering/feeding. (worked for me)
You can get all of these things on the cheap if you dont screw up and buy the wrong stuff like i did "buying wrong bulbs etc" The daytime cfl's will give the blue light spectrum needed for veg and soft will give more of a red spec. used more during flower
FOR NOW stop overwatering do not water until plant soil is dry 3 inches down if you used miracle grow soil w/fertilizer you may have a difficult time with your young plant for a couple weeks because its getting burned and overwatered. Does not need nutes or fert for a couple weeks, work on a healthy root system. Expect the bottom leaves to yellow and fall off with time this is normal. Good luck