What’s wrong with my poor plants :(

Looking at your diary, there are two things I see going on... first is that you're overfeeding her by quite a lot... autos generally don't need/want any nutes at all until they're at least 2 weeks old, sometimes 3... and even then, you want to start them off slowly with about 1/2 strength nutes to see if they're going to be tolerated. The second thing is that your pH is far too low... in a soil grow, you want to keep the pH between 6.0 and 6.5 ideally - but anything LOWER than that is going to cause a lot of problems. The two problems are combining here to give you both the start of a calcium deficiency (yellow spots) and a nitrogen toxicity (curling)... so you first need to stop giving her any nutes at all for the next week or so ...and then make sure the plain water that you give her is pH'd to 6.3 or thereabouts... I would actually go 6.5 on the first watering and make sure you get lots of runoff... this should bring the pH in the soil up and continued waterings at 6.3 will be good. When you restart your nutes, do so only slowly - 1/2 of what you're giving her now... if no problems are seen, you can increase the dose but rarely do autoflowers ever tolerate full strength nutes... feed charts from nute companies always talk about the feeding of photoperiods which can withstand a heavier feed schedule.... with autos, less is better.... Good luck!