Ah, sorry for the misunderstanding.
Blotters are indeed deceptive. My friend had blotters he was "sure" were LSD (he's experienced with acid), he couldn't tell the difference with 1/4 blotter. Well it turned out to be an extremely potent psychedelic amphetamine, later confirmed to be DOB. Absolutely horrendeous stuff. Very deceptive, feels like acid the first hour and then smash comes the speeeeeeeed and you're racing hyperspeed with an ego-boost as company.
A while ago I took 50 mg 2C-C and then took 25 mg 6 hours after (it was an unusually short 2C-C experience, it lasted only for 2 hours and dropped quickly), the 25 mg worked fine. Redose a few times with low doses if you want to find the right dose, just remember 2C-C is rather short-lived, small doses only work for a few hours. For me, even high doses are max 4 hours (edit: This is my experience, it may work longer for you).
I usually trip alone. 9 out of 10 times. Then I'm an introspective tripper who seeks for experiences that are hard or impossible to share with others. 2C-C is not especially thought provoking, I see a very small risk of any tought loops or nasty thoughts. As I said it's very warm and gentle, and your mind is quite clear.
2C-C is a phenethylamine so while it feels calm and maybe sedating, it will raise you pulse. Nothing like the psychedelic amphetamines though, I had very serious worries about my heart when taking DOB. I've never had that feeling with 2C-C.
What other psychedelics have you used and how frequently? If you've taken e.g. shrooms or acid in a moderate dose, you've already been further than 2C-C can take you. 2C-C is perfect to "mysa med" (hard to translate, a bit like cuddling, just having it very comfortable).
As for being at you parent's place, I've tripped on much "harder" psychedelics while at their place when they are asleep. I don't know if it's recommended but definately possible. As long as you're not noisy, if you feel very euphoric and it happens your parents ask what noises you have, just say you masturbate