so its clear your desperate here to save that plant, however, its dead, let it go. It will make shitty little not buds if it does at all. You need to go find the grow journals, or look for a good one in the forums follow it and try to copy it with the things that you have and can buy, thats a good way to start, and you will just have to learn as you go, there is a learning curve depending on your method, but its worth it once you can make healthy plants consistently, after that you try to perfect it, but one step at a time and you seem to have skipped a few here.