Hi psystem, great that you are thinking about this and take it seriously. To answer your questions:
1) Usually, you won't feel the need to walk around, and if you were to stand up on a good dose of DMT you would probably fall right over. Therefore, especially the first time, it might be important to have a sitter with you. How conscious you are of your surroundings, depends on the dose... Unless you really go into the rabbithole, you will probably still know where you are. You might not want to go that deep the first time, but definitely don't underdose!!!
2)If you have a sitter around, no. The trip and comedown are so short in duration, that you will be back to baseline before you know it. Besides, DMT is more likely to be leaving you with a feeling of WTF this is the best than very negative emotions.
3)For the first time, bad idea. Once you are more experienced, it's fine! Too bad you don't have a lot of choice regarding sitters, but I'm sure you can convince this person. It only takes 10/15 minutes, so he won't be sacrificing a whole night babysitting you. It's also nice to reflect your experience afterwards. Explain to him that you really want to do it, and I'm sure that after the experience you will be so excited that you will convince him to do it himself, and you will be HIS sitter a little while later!
4)It might look like you are sleeping, moaning a bit here and there, HMMMM..... AAAHHHH....
You might be smiling, making funny faces, laughing, or saying things like WHOAAA... fantastic... amazing... etc. Tell him to shut up, unless you start talking to him first. It usually looks quite nice when people are on spice!
5)Here on the nexus we don't promote the selling or buying of DMT. It's a sacred spice, it should be given to you as a gift or you should make it yourself, especially since you don't trust the guy who makes it. Homebrew DMT is safe, furthermore: All the DMT being used is homebrew! Everybody on this site makes their own! It's really not hard to do, it's a fun experience and a lot cheaper than buying it, plus you know what you smoke, and can build a relationship with the plant. You can order Mimosa Hostilis online, all the other ingredients for your extraction are easily available in stores. Plenty of people here willing to help with your extraction.
Good luck, keep us updated!!!
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