Mainlining auto

I have build a new lamp holder. Doesn't look reliable, but still strong enough to keep the lamp above the plant. I didn't want to change nutrients ration before I'd a real flowering, but she thinks different, at 4th day I found some sick leaves. Wasn't really sure why was that, I bet for lack of K, so I increased bloom and grow nutrients. And the next day I also decided to add bacterias. Also, since she wasn't growing fast, I bought vitamins (B52) to help her. I could've done it earlier, I just didn't have it at home :D Now, when she entering flowering, she becomes much less flexible and more fragile. So I don't really stretch her anymore, just sorting up some top leaves, so the buds would get more light. Also I continue doing defoliation as before. Idk, what to think, cause I was sure, I'd see some real buds this week, but I didn't. She's switching really slow, and didn't grow as much as I expected. I switched light time from 22/2 to 20/4. Previous time was experimental for me, and now I'm afraid that it might be a problem for slow growing, we'll see how it goes now. But, perhaps, slow growth is consequence of tops, that I've done and now she just needs more time and I shouldn't worry that much. Anyway, she still looks mostly healthy for me. What do you think?