And we are telling you what you are going to need to do. However, you do need to familiarize yourself with the basics. Read, read, read. I cannot give you better advise than that. We all started at some point, but when a lot of us started it WAS trial and error. Now with the vast amount of information on growing available on the web, new growers should be better able to set up a successful grow from the get-go. This does entail reading a bunch before you ever pop a seed, though. LOL--IMO, if you plant seeds, you are looking to grow--don't know that I would call it an accidental grow.
Unfortunately, this is a hobby that does require a certain amount of money and a whole lot if knowledge. While you can grow "on the cheap", you are not going to get a good yield if you do not have sufficient light. Take everything you see on You Tube with a grain of salt. Some people just seem to get a kick out of lying, grossly exaggerating, or committing downright fraud.
Your lighting is directly related to your yield. It sounds as if you are running CFLs. It is going to take a ton of them to illuminate a closet--they actually are the most expensive of all the lights we use to row to operate and they when you get enough of them, they run hotter. You need a minimum of 3000 lumens per sq ft for vegging and 5000 for flowering and keep in mind that these are minimums. You can figure that you are going to need 2+ 23W CFLs for every sq ft of floor space for vegging. For flowering, you are going to need more. So a modest size room, say 3 x 2 will require 18,000 lumens for vegging. A 23W puts out a little under 1400 lumens....so for 6 sq ft you would need 13 23W CFLs, plus reflectors and cords for vegging. You will use 300W...or you could check out a 250W HPS. It puts out about 28,000 lumens and uses about 18% less power, is easier to cool, and will produce substantially more bud.