Seriously what i would do is scrap it and try to find some clones. You gotta get ur tent sealed, duct tape is a growers best friend.
Oh and if your running 18/6 the entire time, thats what is causing it. Bloom needs to be 12/12 if ur running indoor. Your still giving it veg light, so it's been growing for so long that if it was an auto seed then it switched into bloom, but you didn't switch ur light cycle into bloom. So thats why it never continued blooming buds, it wanted to but ended up re-vegging. You didn't switch the light when your plants flipped themselves.
Whats up with all these auto seeds i've been hearing about, i always do clones. Auto seeds seem like there could be alot of issues with and at least for me seems like people want them because they think they can harvest a crop faster or something, but from alot of what i've read people have a ton of issues with them. Re-vegging, hermie, etc.
But i'm almost 100% sure that the plants flipped, but ur lights didn't. Thats why there is barely any noticeable bud formation.
or try like Jeff said and seal up ur room and switch the lights to 12/12 and see what happens. But don't get ur hopes up.
Not a knock on you man, but i feel like people try to take the easiest way to run a grow, but those people end up with the most problems. If ur a super Noob, really try to focus on the little details. Getting ur environment in check is #1, #2 is getting ur light cycle perfected.
And read, read, read as much as you can. On this forum if you spent enough time you'll learn alot man. And don't just take 1 guys word for anything, contest whatever you read, because there are so many opinions about every possible little thing when it comes to growing, there is never a perfect answer. Just keep reading, about plant life cycles, and what makes a plant a plant. It doesn't take much to grow pot, get the basics down first.