DMT is a psychedelics drug.
It's one of those things you try because people around you are trying. But basically, I felt nothing from smoking joints or mushrooms. I had one fun experience once in Amsterdam with some hash cookies, but could I live without it? Yeah.
I feel much the same about alcohol. That at least has a common cultural set of expectations, but at the same time, I didn't think it really changed much about what I thought about the world.
It's quite common not to have any effect from the first few times one tries smoking marijuana. Eventually, the body seems to "learn" how to appreciate the high.
As for mushrooms, if you felt nothing from them I wonder if: 1 - your dose was too low, or 2 - the mushrooms you had weren't psychoactive.
Believe me, if you've tried a high dose of a real psychedelic drug, it would be a very intense experience (assuming you remembered it, as some people do have amnesia from too high a dose of psychedelics, possibly because the experience is too intense for their conscious mind to assimilate).
What I meant was the experience did not really add much to how I thought about the world. I didn't have particularly meaningful conversations with anyone during that time. It didn't add perspective, which is kinda what I thought would happen.
It should be kept in mind, however, is that people's sensitivity to various drugs varies. So what might be a weak dose to one person might be a strong dose to another.