Did 400ug of acid a couple days ago. Was pretty fun but mild until a few hours in when the visuals stopped and I started feeling pretty depressed. I'm a little interested in 40p lsd I think, I might try and get some.
I don't know what the forget you're talking about, but I've got a one word response:
no.
No to pretty much all of it. You didn't do 400ug of acid and have a "pretty fun but mild" trip. 400ug of LSD is a stuffton. The average dose of LSD is 100ug. 400ug would put you on the verge of losing connection with reality. I also don't know what "40p lsd" is, and neither does Google at first look. My only guess is that it's some kind of research chemical, so, no, don't do that.