Point (3) specifically is easily the worst, because you start researching after you get anxious, and what you find will make you even more anxious, because if you are looking for potential side effects and issues, that's exactly what you are going to find. The positive feedback loop with this one is pretty bad.
I also did point (4). I talked to my grandma on the phone. I called her an hour before I took it, but she called back an hour after I took it. The surprising thing is that I actually didn't have a bad trip. It was just pretty meh after I tried everything in the vicinity.
Checklist for a first badtrip.
1) be alone. 2) take it too late to sleep at a reasonable hour. 3) start researching only after taking it.