3g and nothing…

I’m a 200lb male and recently have taken 1g, and then several days later took 2g, and then a week later 3g (intending to go into this in a slow and measured manner for my depression/anxiety, etc.)

Nothing ever happened. I mean, I didn’t feel anything at all. Is that normal? I know everyone is different, but is there a general amount where one starts to feel it’s effects?