- Bong/leaf bed/enhanced leaf
One method generally considered successful is in a water bong, with a couple of metal screens, a thick layer of ashes or thin layer of herbs on the bottom, then the dmt in the middle, and then another thick layer of ashes or thin layer of herbs on top. 50mg seems to be a good dose if one wants to really go inside the dmt dimension. Inhale slowly and deeply, holding in the lungs as much as possible (at least a few seconds), exhaling, and then taking a second, third one if possible, and even fourth one if one still can. Even if after the first there are already some effects, if one really wants to breakthrough, gotta keep going as much as one can.
Specifically for enhanced leaf check link below