1—There are different strands of magic mushrooms. Since it’s mostly illegal, you will likely not know how strong the mushrooms you have are, and what effects they might have. So it’s best to begin with a low dose.
I prefer higher doses, but for microdosing begin with .1 or .2 grams. You most likely won’t feel anything. Even at half a gram you might not feel anything. So begin low, then go from there.
If you don’t want to feel anything, continue with the .1 or .2 grams. If you want to feel some effects, go to 1 gram, and if you want the whole experience, take 3.5 or more grams.
Remember, each person reacts different to psilocybin. If you are taking other medicine, your medicine may effect your trip — whether it makes you not feel anything, or makes you feel something different, it just depends.
Safe bet is to begin with a small amount and go from there.
Anyway I think psychedelics are basically harmless. For me, they have been more than harmless. They have been extremely beneficial, helping me come to accept parts of myself I didn’t like before, increasing my self-awareness, raising my critical thinking skills, and deepening my spirituality.
The education system, and maybe family members, have taught you and I that “All drugs are bad, mmkay”, but that’s not true!!! Some drugs are bad, but some drugs are better than good, like psilocybin.
You might not feel some of the awesome effects of psilocybin if you are microdosing, but if that’s what you want, start with a small amount and then go from there. I’m excited for you.