i transplanted a plant about 4 days ago and it went fucking HORRIBLY. hours after transplant its leaves could no longer support themselves and droop straight down. it's leaves have now shrunken to 1/3 of their original size. it's still green but shows NO signs of getting better... what the fuck am i supposed to do
For that to happen hours after transplanting it must have been one of: Damage to roots or stem, Dried out, Dramatic change in temperature (too hot or too cold) [did you put it straight under a hot light after you transplanted it?] I can't think of anything else right now. If it isn't picking up by now then you may have unfortunately lost it What's it looking like now?
If you transplanted into the same soil then you've damaged the rootball : FUBAR. If you transplanted into different soil then your plant is into pH shock, which is what happens when soil pH changes quickly. That's kinda like taking an Eskimo, putting him onto the equator and watch his skin redden. Whatever the case : Good luck!
The only other thing I can add is that you may have tried transplanting too early and the only thing supporting the plant were very fine root-hairs. I don't up-pot until the plant makes enough root to fill a 12-16 oz cup. A firm rootball holds together and there will be virtually no transplant setback.